[IN-STOCK, SHIPPING, OPEN] Professional quality USB hubs for USB bitcoin miners

[razorfishsl]

Hi this is Razorfishsl,

This is a 19 port hub with an integral power supply that is capable of reliably supplying MORE than 700mA per port without overheating or becoming a fire hazard.
it is a professional hub capable of  FULL 480 Mb/s  communication via any of its ports (when used inline with USB standard ), it also complies and implements the full 2.0 USB standard.

Correctly supports Red/Blue/Ice Fury 2.6 Ghs AND Bi-Fury 4+ Ghs USB miners

To promote BTC, all payments using bitcoin are subject to 6% discount. BTC/$USD exchange is based on latest price quote from coin-base at the time of transaction.





Spec of product
- Fully 480mb/s at each port
- 16 Front facing Standard A USB ports
- 3 Side facing Standard A
- 1 Master hub connection Standard B for connection to Computing Equipment or other hubs.
- Fully fused internally via multiple poly-fuse resettable fuses both on each individual port and on the main power feed to the Ports.
- UK/European standard 3 pin power plug
- Hub runs COOL



Electrical specifications
Industrial 19 port Steel casing USB Hub (with power cable & USB cable)
20 Amps @ 5v
220-240/110 Vac
Earthed External case

Colour: Silver

Weight
2.2 Kg each hub


Purchase Quantity
1-2 hub  - $160 usd each
3-5 hubs - $145 usd each
6+ hubs  - $130 usd each  (Packed in boxes of 6, so multiples only, keeping in mind that this is going to weigh 15kg!!!)

Paypal
1-2 hub - $170 usd
3-5 hubs - $160 usd each
6+ hubs - $140 usd each


Shipping
Normally ships within a day.

Expedited Airmail(Speed post) with tracking number (2-5 days):  $70 usd (additional items +$30 usd)
Normal Airmail with tracking number (5-14 days) : $40 usd (additional items +$20 usd)
Surface parcel  (20-30 days) ask for quote

1. If you require the 'speed post'/carrier option
Please be clear that the carrier requires official invoices and declared value and may inspect goods before accepting them.
This is in line with International carrier laws (DHL/UPS etc)





Payment Methods
Razorfishsl : 1LEPFJsocPgN7dwHF7ubFywGmYVJdkXnGg

Send PM with the following information:

1. Full address (if this is wrong then it CANNOT be delivered)
2. Phone number (if express, so the carrier can arrange delivery)
3. Voltage you want it set to 110/120-220/240
4. Country you will use product in, so the  voltage can be set before shipping!!!
4. price you translated at using bitpay or coin-base (So it is visible if you got the discount for BTC)
5. BTC transaction ID


Paypal
(PM for details , if you want to pay fiat)


Background
Why the hubs are 'special'.
 (ungrounded BUCK convertors on mains supply are potential killers)
 A point than not many people know is that over 90% of the powered USB hubs on the market are actually 'defective', and in many cases have an inherent and potentially dangerous electrical fault.(It's why Chicks in China keep electrocuting themselves when answering a charging  mobile), this is what happens when you design products in isolated labs with little regard for the environment they are used in. (then rip the design without understanding the implications and decision making)

One of the reasons why we keep seeing so many people with  USB chains that go down or fail to recognize devices when they are plugged in.
Usually the people with the SBC's  ( Pi, etc) are more prone to these faults, because these  powered USB hubs usually come with a PSU that has been ripped from a phone PSU design and as such were never designed to operate in a USB environment worse many USB implementations incorrectly mix the shield with the 0V line.



RF

[1714241263]

1714241263

[1714241263]

1714241263

[1714241263]

1714241263

[nwoolls]

e03a6e1ed4e17c27b45a62b389e3139837b2334d1dc585ab0248bb88d3d41763

$197.80 at the time of transaction for 1 unit and standard shipping. Will PM address info. Thanks!

[philipma1957]

And is this only 220 volt with european connections.

 I am usa I use 120 volt.

[razorfishsl]

And is this only 220 volt with european connections.

 I am usa I use 120 volt.

I can set it to 110-120 if you place the order with me (razorfish), and I will MARK the box as 110v

The connection is also a standard computer cable, so you can use any cable for your country that:

1. Is EARTHED
2. fits a standard ATX PSU

RF

[BotwinBG]

https://blockchain.info/tx-index/1d31a980a2cf62ebd7a03534091f7f83ee2be2779ae4d07d0cb78a32dc5da974

225.6 USD at the time of the transaction, one 220V unit with Expedited shipping. Address details incoming in PM.

[philipma1957]

https://blockchain.info/tx/caaeaec64b7fab42bd2f3527b50d8111a2cfce87232d35af17335c8dab4e08aa


$197.44 usd  for 1 hub standard shipping to usa set to 110 volts.

  note I took a %6 btc discount


looking forward to using this gear.

[philipma1957]

Well it is getting closer to my home. In New Jersey:

Outward Ordinary Parcel

Print friendly version Print friendly version

Item Number: CP89----------

Posting Date   Drop-off Point   Origin
15-Jan-2014   Tai Po Post Office   Hong Kong

Date #   Location   Delivery Status
15-Jan-2014   Hong Kong   Item posted and is being processed.
15-Jan-2014   Hong Kong   In transit.
16-Jan-2014   Hong Kong   Processed for departure.
16-Jan-2014   Hong Kong   The item left Hong Kong for its destination on 17-Jan-2014
19-Jan-2014   United States of America   Arrived and is being processed.
19-Jan-2014   United States of America   Pending customs inspection.

# Location Date

I will use 14 ice fury  sticks and see if I can get a high over clock.

Right now I get a 54 setting on my ice fury sticks.

 This means about 2.5 a stick.. If I get a 56 or 58 setting to work the sticks may push the 2.8 level.  I will post photos.

[ManeBjorn]

I'm looking forward to seeing how well this works for you.
I really want to get one as well when I get the money for it.
I do hope the price comes down a bit though.

Well it is getting closer to my home. In New Jersey:

Outward Ordinary Parcel

Print friendly version Print friendly version

Item Number: CP89----------

Posting Date   Drop-off Point   Origin
15-Jan-2014   Tai Po Post Office   Hong Kong

Date #   Location   Delivery Status
15-Jan-2014   Hong Kong   Item posted and is being processed.
15-Jan-2014   Hong Kong   In transit.
16-Jan-2014   Hong Kong   Processed for departure.
16-Jan-2014   Hong Kong   The item left Hong Kong for its destination on 17-Jan-2014
19-Jan-2014   United States of America   Arrived and is being processed.
19-Jan-2014   United States of America   Pending customs inspection.

# Location Date

I will use 14 ice fury  sticks and see if I can get a high over clock.

Right now I get a 54 setting on my ice fury sticks.

 This means about 2.5 a stick.. If I get a 56 or 58 setting to work the sticks may push the 2.8 level.  I will post photos.

[philipma1957]

I'm looking forward to seeing how well this works for you.
I really want to get one as well when I get the money for it.
I do hope the price comes down a bit though.


yeah these would be nice at 150 usd vs 200 usd

Well it is getting closer to my home. In New Jersey:

Outward Ordinary Parcel

Print friendly version Print friendly version

Item Number: CP89----------

Posting Date   Drop-off Point   Origin
15-Jan-2014   Tai Po Post Office   Hong Kong

Date #   Location   Delivery Status
15-Jan-2014   Hong Kong   Item posted and is being processed.
15-Jan-2014   Hong Kong   In transit.
16-Jan-2014   Hong Kong   Processed for departure.
16-Jan-2014   Hong Kong   The item left Hong Kong for its destination on 17-Jan-2014
19-Jan-2014   United States of America   Arrived and is being processed.
19-Jan-2014   United States of America   Pending customs inspection.

# Location Date

I will use 14 ice fury  sticks and see if I can get a high over clock.

Right now I get a 54 setting on my ice fury sticks.

 This means about 2.5 a stick.. If I get a 56 or 58 setting to work the sticks may push the 2.8 level.  I will post photos.

[ManeBjorn]

Very true.  With shipping it puts it just out of my range.
But it looks like it has great spacing and lots of power for all devices.
As it is now mine are spread on among two Anker 7 port hubs.  They work great but spacing is an issue with the BiFuries and RedFuries.

I'm looking forward to seeing how well this works for you.
I really want to get one as well when I get the money for it.
I do hope the price comes down a bit though.


yeah these would be nice at 150 usd vs 200 usd

Well it is getting closer to my home. In New Jersey:

Outward Ordinary Parcel

Print friendly version Print friendly version

Item Number: CP89----------

Posting Date   Drop-off Point   Origin
15-Jan-2014   Tai Po Post Office   Hong Kong

Date #   Location   Delivery Status
15-Jan-2014   Hong Kong   Item posted and is being processed.
15-Jan-2014   Hong Kong   In transit.
16-Jan-2014   Hong Kong   Processed for departure.
16-Jan-2014   Hong Kong   The item left Hong Kong for its destination on 17-Jan-2014
19-Jan-2014   United States of America   Arrived and is being processed.
19-Jan-2014   United States of America   Pending customs inspection.

# Location Date

I will use 14 ice fury  sticks and see if I can get a high over clock.

Right now I get a 54 setting on my ice fury sticks.

 This means about 2.5 a stick.. If I get a 56 or 58 setting to work the sticks may push the 2.8 level.  I will post photos.

[BotwinBG]

Received my shipment today. Came with a UK cable and had to pay import duty, otherwise all good, thanks!

[philipma1957]

Received my shipment today. Came with a UK cable and had to pay import duty, otherwise all good, thanks!

Okay where are you located USA ,UK?  If USA what was the duty?

[BotwinBG]

Received my shipment today. Came with a UK cable and had to pay import duty, otherwise all good, thanks!

Okay where are you located USA ,UK?  If USA what was the duty?

Northern Europe. It was about 35USD equivalent.

[philipma1957]

Thanks for the info. Does it work well so far?

[nwoolls]

Thanks for the info. Does it work well so far?

Got mine today (US) - works great!

[ccualumni]

Newbie question incoming...

If I buy this hub, then I need to buy the USB cards and run it using my computer? Does it matter what computer I have or what USB port it needs?

[ManeBjorn]

That is great to know.
Is it metal or a plastic case? It looks fairly rugged.

Thanks for the info. Does it work well so far?

Got mine today (US) - works great!

https://www.dropbox.com/sh/olaujsguevxo8np/Q_joZpaMp7#/

[nwoolls]

If I buy this hub, then I need to buy the USB cards and run it using my computer? Does it matter what computer I have or what USB port it needs?

I can do my best to answer but may get corrected later 

What comes in the box is the USB hub (metal inclosure), a power cable (for connecting to a socket), a USB cable (for connecting to a computer), and a USB LED fan (pleasant surprise!).

You have to buy the ASICs and whatnot separately, this is only a powered hub. I honestly haven't checked power usage or anything but so far the ASICs are running great off a Raspberry Pi. Takes far less space and less hassle than the D-link hubs I was using.

[philipma1957]

Newbie question incoming...

If I buy this hub, then I need to buy the USB cards and run it using my computer? Does it matter what computer I have or what USB port it needs?

okay windows 7 and a pc with a usb 2.0 port should be good. ant miner usb u-1 sticks or ice furies or red furies should work well in the pc.

this hub is a stud/ a high end hub.  At least in theory it is.  So far users like it.

 I plan to put about 16 ice 'nano' furies in it. an attach 2 fans to it.  the guy above uses a raspberry pi I never tried it.  I run  4 pc's with windows 7 because I also run the gpu's in them at lite coin.

 the  4 pc's are dedicated for mining.  i use the macs I have for the net home theater etc.

[ManeBjorn]

That sounds like a good plan.
I would put my BiFury and Red Furies in it with some of the old block erupters. 
Hopefully I can get one soon too. 

Newbie question incoming...

If I buy this hub, then I need to buy the USB cards and run it using my computer? Does it matter what computer I have or what USB port it needs?

okay windows 7 and a pc with a usb 2.0 port should be good. ant miner usb u-1 sticks or ice furies or red furies should work well in the pc.

this hub is a stud/ a high end hub.  At least in theory it is.  So far users like it.

 I plan to put about 16 ice 'nano' furies in it. an attach 2 fans to it.  the guy above uses a raspberry pi I never tried it.  I run  4 pc's with windows 7 because I also run the gpu's in them at lite coin.

 the  4 pc's are dedicated for mining.  i use the macs I have for the net home theater etc.

[KyrosKrane]

How many logical hubs is it?

(For example, a typical 7-port hub is two logical four-port hubs, with hub #2 "plugged" into a port of hub #1, leaving seven open ports for the user.)

Reason I'm asking is, the Raspberry Pi can have issues with this hub if there are too many logical hubs inside it.

[klintay]

If I buy this hub, then I need to buy the USB cards and run it using my computer? Does it matter what computer I have or what USB port it needs?

I can do my best to answer but may get corrected later  

What comes in the box is the USB hub (metal inclosure), a power cable (for connecting to a socket), a USB cable (for connecting to a computer), and a USB LED fan (pleasant surprise!).

You have to buy the ASICs and whatnot separately, this is only a powered hub. I honestly haven't checked power usage or anything but so far the ASICs are running great off a Raspberry Pi. Takes far less space and less hassle than the D-link hubs I was using.

Nwoolls, thanks for answering those questions, its sounds correct to me. The casing of the hub is made out of steel. They are proper mens hubs as my grandfather would say  

The hubs themselves run cold but i have heard some people post before about cooling the miners which can get quite hot. I think everyone's setup is different but i have five hubs running at the moment with 16 red furies in each one. I haven't used any fans and they have been fine for the past 3 weeks. Although it is the middle of winter at the moment so temperature is a bit cooler than usual.

How many logical hubs is it?

(For example, a typical 7-port hub is two logical four-port hubs, with hub #2 "plugged" into a port of hub #1, leaving seven open ports for the user.)

Reason I'm asking is, the Raspberry Pi can have issues with this hub if there are too many logical hubs inside it.

I think they are three logical seven-port hubs. So each hub used counts as 21 usb ports with 19 usuable. Razorfish correct me if i am wrong here!

[madao]

I'm interested but sort of iffy on how to calculate what to send.

Don't suppose you could post an official price of the day, or something.

If not, what would I need to do to qualify to use paypal?
My ebay account is in good standing, if that can put your mind at ease

[klintay]

I'm interested but sort of iffy on how to calculate what to send.

Don't suppose you could post an official price of the day, or something.

If not, what would I need to do to qualify to use paypal?
My ebay account is in good standing, if that can put your mind at ease

we use the coinbase.com btc valuation to determine btc price. Just check it out at the time of sending then minus 6%
I have sent a PM with details about paypal payment as well.

[bitgtr]

http://blockchain.info/tx-index/c5d213962751b47ac02130ff175fe67d4e41350475f0388d7252a8f1495fa568

Purchasing 8 please! ~$112.8 per unit, plus shipping. Very much looking forward to receiving them.

UPDATE
One unit received and loaded up:

https://dl.dropboxusercontent.com/u/9817077/IMG_20140201_123915.jpg
16 Yellowjackets... mmm...

https://dl.dropboxusercontent.com/u/9817077/Screenshot%202014-02-01%2019.25.20.png
All overclocked to 54 oscillator bits, there don't seem to be any power-related error messages; it seems rock solid

Very happy, can't wait to get the rest!

[madao]

Put in an order for 1 unit via Paypal, thank you

[razorfishsl]

If I buy this hub, then I need to buy the USB cards and run it using my computer? Does it matter what computer I have or what USB port it needs?

I can do my best to answer but may get corrected later  

What comes in the box is the USB hub (metal inclosure), a power cable (for connecting to a socket), a USB cable (for connecting to a computer), and a USB LED fan (pleasant surprise!).

You have to buy the ASICs and whatnot separately, this is only a powered hub. I honestly haven't checked power usage or anything but so far the ASICs are running great off a Raspberry Pi. Takes far less space and less hassle than the D-link hubs I was using.

Yep, I was going to do FREE fans with all the hubs (as a thank-you to purchasers )BUT then I found a CRITICAL Quality assurance problem with the fans, and am now sitting with a SHITLOAD of useless fans

Please don't use swan neck FANS with hub/ computer.

1. The fans have a contact that is copper and fails after about 1 week of continuous running…….. fan continues but lights die (not critical, just an annoyance)
2. The fans vibrate and transfer the force down the swan neck and into the USB hub socket… thereby fucking them up………. (critical failure, can damage USB connections)

Please don't use the swan neck fan  directly into ANY fixed USB socket, this is why I think it is difficult to find swan neck fans, and yes I know 'loads of people use them', but I am fairly scientific in most things I do.



Additional taxes…on delivery.. Hong Kong is a free port, and I'm currently looking at ways to pass that saving on……, but ultimately it is down to YOUR local government and customs.
Air post is fairly stringent on declarations, what with people trying to blow planes up…..
SPEED POST demands 3 copies of an invoice is supplied with the documentation.

regarding Power usage, the unit contains a switched mode PSU, so it should be as least as efficient as a phone charger…


A bit of background
On Testing…
Normally I'm fairly private, but I can say I have over 30 years experience in Quality assurance & design/electronics, 25 of which are in China/Asia.
(which is why my first post was a bit technical)

At my last company I managed 3,000 products out of a 28,000-32,000 range and dealt with/controlled about 110 factories over a period of 16 years.
If you live in The UK or Europe, you may see some of the products I have designed. (Homebase/Argos)

The issue is not finding product in China or using a translator for TaoBao/ ali…etc, but rather ensuring what you purchase meets the required levels.



I evaluate Circuit layout
to make sure I get what was agreed…



Here I use  a PAT (portable appliance tester), this  performs leakage, flash test earth bond, cross wired & short tests, This is in addition to the factory tests….
Nope!! I do not trust Chinese factories to say they will do what they agree too.

On 'UK 3 pin' Cables….

Yes I know…. they are NFG (no fucking good) other than for a few countries in the world.
For this shipment I figured people would just substitute in the 'correct' cable, Yep… even I get caught out by the idiots sometimes….
Normally I do on-site inspections BEFORE taking goods, unfortunately before Chinese new year is a problem.


RF

[philipma1957]

mine is stuck in customs in New York.  Maybe I will get it on fri. I am looking forward to using it.

[ManeBjorn]

There seems to be a major slowdown in NYC with customs.  I have had a RedFury trapped there for over 1 week with no further info.
They are slow.

mine is stuck in customs in New York.  Maybe I will get it on fri. I am looking forward to using it.

[razorfishsl]

That is great to know.
Is it metal or a plastic case? It looks fairly rugged.

Thanks for the info. Does it work well so far?

Got mine today (US) - works great!

https://www.dropbox.com/sh/olaujsguevxo8np/Q_joZpaMp7#/

This is a SOLID STEEL construction, cam shell,
 Internally the  USB PCB is mounted on a steel back plane,via steel/brass bushings spaced so they take the force from any USB items being plugged in.
This backplane is then screwed into outer case, the Switched mode PSU is mounted under that, again bolted to the outer case.

More importantly the parts are replaceable, I.E you can swap out the power supply or even the USB PCB, so if you blow the ass out of the power supply (lightning strike?), you can just swap it out.

Also the USB tree is structured in such a way as to MINIMIZE the number of levels… (127 is NOT the ONLY limitation per USB HOST controller)

Many people think that building a usb hub is 'easy' you just get a PCB and some USB chips and stick them together…..

Yep that works fine for basic setups 1 computer 1 hub… but the real design thought comes in when…… you take two identical hubs and chain them together…..
Badly designed and you can end up with 'mis nested' hubs. (signals travel ~ 3 inches per ns unless it is silicon then it is WAY slower…)
There is a REASON this hub has the 3 side ports……, they are not just basic USB ports.

RF

[ManeBjorn]

Excellent.
Thanks for all the info and help.

That is great to know.
Is it metal or a plastic case? It looks fairly rugged.

Thanks for the info. Does it work well so far?

Got mine today (US) - works great!

https://www.dropbox.com/sh/olaujsguevxo8np/Q_joZpaMp7#/

This is a SOLID STEEL construction, cam shell,
 Internally the  USB PCB is mounted on a steel back plane,via steel/brass bushings spaced so they take the force from any USB items being plugged in.
This backplane is then screwed into outer case, the Switched mode PSU is mounted under that, again bolted to the outer case.

More importantly the parts are replaceable, I.E you can swap out the power supply or even the USB PCB, so if you blow the ass out of the power supply (lightning strike?), you can just swap it out.

Also the USB tree is structured in such a way as to MINIMIZE the number of levels… (127 is NOT the ONLY limitation per USB HOST controller)

Many people think that building a usb hub is 'easy' you just get a PCB and some USB chips and stick them together…..

Yep that works fine for basic setups 1 computer 1 hub… but the real design thought comes in when…… you take two identical hubs and chain them together…..
Badly designed and you can end up with 'mis nested' hubs. (signals travel ~ 3 inches per ns unless it is silicon then it is WAY slower…)
There is a REASON this hub has the 3 side ports……, they are not just basic USB ports.

RF

[philipma1957]

There seems to be a major slowdown in NYC with customs.  I have had a RedFury trapped there for over 1 week with no further info.
They are slow.

mine is stuck in customs in New York.  Maybe I will get it on fri. I am looking forward to using it.

yeah not the first time I have had delays with NYC customs.

[ManeBjorn]

I hope it gets sorted down there soon.  I just ordered one of these myself and I am looking forward to it.

There seems to be a major slowdown in NYC with customs.  I have had a RedFury trapped there for over 1 week with no further info.
They are slow.

mine is stuck in customs in New York.  Maybe I will get it on fri. I am looking forward to using it.

yeah not the first time I have had delays with NYC customs.

[klintay]

Put in an order for 1 unit via Paypal, thank you

Thanks payment received. I am getting your shipment ready this evening, will post it first thing tomorrow morning

[razorfishsl]

How many logical hubs is it?

(For example, a typical 7-port hub is two logical four-port hubs, with hub #2 "plugged" into a port of hub #1, leaving seven open ports for the user.)

Reason I'm asking is, the Raspberry Pi can have issues with this hub if there are too many logical hubs inside it.

I think they are three logical seven-port hubs. So each hub used counts as 21 usb ports with 19 usuable. Razorfish correct me if i am wrong here!

The hub is 19 external USB ports , 3 are level 1, 16 are level 2… that is all we need to care about… for expansion hubs plug the shit into the side.


This is something I have been  HARPING on for over a YEAR on the forums and WHY the Pi is NFG for large installations.

Most of these shitty little 'cutter' SBC's have major problems with the USB… then add into this equation SHITTY hubs.

Nearly everyone knows about the 126 USB device limit per Physical controller, but what is not often discussed it the level limitation.
'Theoretically' a usb chain can be nested to upto 5 levels.

 I.E

Controller+Hub+hub+hub+hub.
Now here is the rub… inside the silicon of the SBC or sometimes on the PCB is a hub chip (NOT for users)…, because these SBC devices CHAIN the  ethernet/bluetooth or other I/O internally off the USB protocol, just the manufacturers don't tell you directly….

So what they do is 'hide' as many as TWO logical USB hubs INSIDE the SBC (Huba Huba), BUT then Chain them off each other and into a SINGLE silicon port……,
The reason why they hide two, is because as soon a you plug a slow device into a chain then the WHOLE chain is that speed(new smarter hub chips can act as translators without destroying the speed of the whole chain as long as there is a clear path at 480Mb/s).

The net effect of this SBC hand job is that straightway the 5 levels become 3 or less!!!, which is basically enough for 1 extra 10 port hub (because 1 chip HAS to be chained off another one and hence the problems with the PI, if you are lucky you plug the other hubs into the  FIRST chip in the chain then you get a second level, if not they get plugged into the second chip and go out of range)

Coming back to the metal hub:
if you use the 3 side connectors, then it is one level ,
if you use the top, then it is basically 2 levels apart from 2 top ports where it is 1.(work it out!! )

So… if you buy 4 metal hubs

you plug your computer into one of the hubs via the 'B' type connector and then you plug the other THREE hubs into the side connectors of that ONE hub, UNLESS your computer has more than 1 port, in which case you use ALL the connectors on the computer first.

DO NOT build up a single chain of 1:1:1:1 and think it is cooler and faster, because it is not.
USB is a TREE structure and no tree has all the branches on a single limb (consider the controller as the TRUNK, notice how mother nature has ALL this 'effective distribution' shit already worked out!!!).


These metal hubs I PERSONALLY have had a full device chain of nearly 126 devices, the miner count reached ~104 devices, the rest was hub chips………
But NOTE, the miner performance is less with an SBC than a 'real computer', I suspect it is due to kernel task switching.


Next up……..
Realtek, yep you see they make all sorts of USB silicon…. In fact they developed a shit load of silicon when USB 1.0 came out, and since silicon development is expensive, when USB 2.0 came out they took a silicon 'wrapper' that runs USB2.0, but then the internal cores of their chips are USB 1.0…., their chips are mostly used in cheap crap hubs from China.

BUT they all advertise the products as USB 2.0 compatible with 1.0, because the silicon wrapper is good to USB2.0 standard (which Is compatible with 1.0) ,but the actual internal core silicon communicates at 12mb/s or SLOWER!!!.
Same with their Ethernet to USB chips, the whole core runs at USB1.0, which is ironic because the Ethernet is '100/10 compatible' but it is bottlenecked because it is running at USB1.0 speeds internally!!!!
(bit like some old lady driving her battery powered trike in a 45MPH zone, because it is 'road worthy' but holding up all the traffic behind her)

Needless to say Microsoft was involved in this…..

[philipma1957]

Your tree explanation is solid.
Thanks.

Back in NOV. I was able to run 122 asic miner be's due to hidden hubs in the 3x 49 port hubs I used a while back.
on the 123rd be it read 100% percent error rate as I exceeded the magic 127 port usb limit.
I posted a photo or two of it on a thread some where.

btw my hub has escaped customs and is out for delivery . I hope to report on it late today.
The goal is to run all ice 'nano' fury sticks at the freq set to 55 getting 2.6/2.7gh a stick. If this hub does this I will buy a few more.

How many logical hubs is it?

(For example, a typical 7-port hub is two logical four-port hubs, with hub #2 "plugged" into a port of hub #1, leaving seven open ports for the user.)

Reason I'm asking is, the Raspberry Pi can have issues with this hub if there are too many logical hubs inside it.

I think they are three logical seven-port hubs. So each hub used counts as 21 usb ports with 19 usuable. Razorfish correct me if i am wrong here!

The hub is 19 external USB ports , 3 are level 1, 16 are level 2… that is all we need to care about… for expansion hubs plug the shit into the side.


This is something I have been  HARPING on for over a YEAR on the forums and WHY the Pi is NFG for large installations.

Most of these shitty little 'cutter' SBC's have major problems with the USB… then add into this equation SHITTY hubs.

Nearly everyone knows about the 126 USB device limit per Physical controller, but what is not often discussed it the level limitation.
'Theoretically' a usb chain can be nested to upto 5 levels.

 I.E

Controller+Hub+hub+hub+hub.
Now here is the rub… inside the silicon of the SBC or sometimes on the PCB is a hub chip (NOT for users)…, because these SBC devices CHAIN the  ethernet/bluetooth or other I/O internally off the USB protocol, just the manufacturers don't tell you directly….

So what they do is 'hide' as many as TWO logical USB hubs INSIDE the SBC (Huba Huba), BUT then Chain them off each other and into a SINGLE silicon port……, the reason why they hide two, is because as soon a you plug a slow device into a chain then the WHOLE chain is that speed(new smarter hubs can act as translators without destroying the speed of the whole chain as long as there is a clear path at 480Mb/s).

The net effect of this SBC hand job is that straightway the 5 levels become 3 or less!!!, which is basically enough for 1 extra 10 port hub (because 1 chip HAS to be chained off another one, and hence the problems with the PI, because if you are lucky you plug the other hubs into the  FIRST chip in the chain then you get a second level, if not they get plugged into the second chip and go out of range)

Coming back to the metal hub, if you use the 3 side connectors, then it is one level , if you use the top, then it is basically 2 levels apart from 2 top ports where it is 1.(work it out!! )

So… if you buy 4 metal hubs

you plug your computer into 1 and then you plug the other THREE into the side connectors of ONE hub, UNLESS your computer has more than 1 port, in which case you use ALL the connectors on the computer first

DO NOT build up a single chain of 1:1:1:1 and think it is cooler and faster, because it is not, USB is a TREE structure and no tree has all the branches on a single limb (consider the controller as the TRUNK, notice how mother nature has ALL this shit already worked out!!!).


These metal hubs I PERSONALLY have had a full device chain of nearly 126 devices, the miner count reached ~104 devices, the rest was hub chips………
But NOTE, the miner performance is less with an SBC than a 'real computer', I suspect it is due to kernel task switching.


Next up……..
F***ing Reltek, yep you see they make all sorts of USB silicon…. In fact they developed a shit load of silicon when USB 1.0 came out, and since silicon development is expensive, when USB 2.0 came out they took a silicon 'wrapper' that runs USB2.0, but then the internal cores of their chips are USB 1.0…., their chips are mostly used in cheap crap hubs from China.

BUT they all advertise the products as USB 2.0 compatible with 1.0, because the basic silicon wrapper is good to USB2.0 standard (which Is compatible with 1.0) ,but the actual internal core silicon communicates at 12mb/s or SLOWER!!!.
Same with their Ethernet to USB chips, the whole core runs at USB1.0, which is ironic because the Ethernet is '100/10 compatible' but it is bottlenecked because it is running at USB1.0 speeds internally!!!!
(bit like some old lady driving her battery powered trike in a 45MPH zone, because it is 'road worthy' but holding up all the traffic behind her)

Needless to say Microsoft was involved in this…..

[ManeBjorn]

Congrats on escaping the clutches of customs. 
I can't wait to see your posts about how it works when you are setup to go along with others posts on theirs.

[philipma1957]

Congrats on escaping the clutches of customs. 
I can't wait to see your posts about how it works when you are setup to go along with others posts on theirs.

  real quick post it is running 18 ice 'nano' furies   set on 55 for oc. 


 no other hub that I have tested allows for setting 55 most 10 port hubs allow 6 or 7 nano furies set on 54.     

 it is good enough that I will order some more. 

 I need to fully test it and also get some more hubs attached to it.

[ManeBjorn]

Wow that is a beast.
Is that on US 110v?
Now I am even more anticipating mine.

Congrats on escaping the clutches of customs. 
I can't wait to see your posts about how it works when you are setup to go along with others posts on theirs.

  real quick post it is running 18 ice 'nano' furies   set on 55 for oc. 


 no other hub that I have tested allows for setting 55 most 10 port hubs allow 6 or 7 nano furies set on 54.     

 it is good enough that I will order some more. 

 I need to fully test it and also get some more hubs attached to it.

[philipma1957]

Wow that is a beast.
Is that on US 110v?
Now I am even more anticipating mine.


  I am on usa power 117 volts at the plug.

Congrats on escaping the clutches of customs. 
I can't wait to see your posts about how it works when you are setup to go along with others posts on theirs.

  real quick post it is running 18 ice 'nano' furies   set on 55 for oc. 


 no other hub that I have tested allows for setting 55 most 10 port hubs allow 6 or 7 nano furies set on 54.     

 it is good enough that I will order some more. 

 I need to fully test it and also get some more hubs attached to it.

[philipma1957]

quick photos

[ManeBjorn]

Nice deal. 
What speed are they running at? Are any overclocked?

In some good news my RedFury just got out of customs as well today.  I should have it to add to the others by saturday. Hopefully my hub does not have to wait so long as well.

[philipma1957]

Nice deal.  
What speed are they running at? Are any overclocked?

In some good news my RedFury just got out of customs as well today.  I should have it to add to the others by saturday. Hopefully my hub does not have to wait so long as well.

I took  more photos.  I set all at the stock

freq 50  and it  pulls 44-45 watts.



 Set at a good over clock freq 54  and it pulls pulls 56 watts.

The hashrate jumps from 2.0 to 2.5 so 16 sticks go from 32gh to 40gh pulling only 56 watts at the plug pretty good. means it can pay for power at very high difficulty rate.



I did 16 at freq 54 on this hub



This hub does  only  7 of 10



I had as many as 18 on the stud hub running at 54  freq

[ManeBjorn]

That is just great. 
Once I get this I can sell my Anker 7 port hubs then.

[stex2009]

Nice deal.  
What speed are they running at? Are any overclocked?

In some good news my RedFury just got out of customs as well today.  I should have it to add to the others by saturday. Hopefully my hub does not have to wait so long as well.

I took  more photos.  I set all at the stock

freq 50  and it  pulls 44-45 watts.


 Set at a good over clock freq 54  and it pulls pulls 56 watts.

The hashrate jumps from 2.0 to 2.5 so 16 sticks go from 32gh to 40gh pulling only 56 watts at the plug pretty good. means it can pay for power at very high difficulty rate.


I did 16 at freq 54 on this hub

This hub does  only  7 of 10

I had as many as 18 on the stud hub running at 54  freq

Wow! philip, you must have a huge collection of everything that's available in the mining world!

[philipma1957]

i have lots of sticks, hubs, psu's gpu's ,but no big miners.  I had 4 cubes for about a week .  but I had a buyer for them when I got them.

I got into mining due to my ebay mac mini/pc upgrades.  i figured it would be a good fit .  has been nice so far.
I learned years ago that big ticket sales on ebay are very hard to do. so in mining I do smaller priced items . even if 1 out of 10 buyers on ebay robs me it is only for 1 or 2 usb sticks.

 I would have a hard time if a buyer robbed me of a knc jupiter .  I would most likely want revenge which leads to bad karma.  now if a buyer robs a usb stick or 2 I live with it. put them on a do not sell to list and move on.


These are the best hubs I have owned or tested as of today

 not the cheapest but the sturdiest so far. they seem to have the best power supply so far.

[razorfishsl]

Yep that bitch is 20A clear……. and that's the constant current it can provide at 5v1
There is even room to slap in different PSU, but there is no need…

And yep I know they are not cheap…. if I could find a way to sell this stuff at $50USD there would be a massive market, that said , how many USB 2.0 hubs have we bought over the years… I have a massive box of them I use for spares….

I have a couple of other USB hub products in Metal cases I evaluated, but they fall down on the PSU, and by the time I costed a new case and integral PSU … they come out at about the same cost.


Since the Fury chips are highly dependent on the onboard regulators, the closer you can get to 5.X at the socket, the cleaner the regulation at the chip…

Once the supply at the socket comes down to 4.7-4.8 then the regulation goes on the buck convertor feeding the  Fury.

Seriously….. next time they used a buck convertor, they should have targeted one that could go as low 3-4v for it's supply rail…, very few devices give 5v at the USB socket…

This is why the 49 port hubs are dodgy…. you have the potential for 40-50A of current slopping around the tracks, ping ponging about at  MH bit rates…..
god only knows what all that inductance looks like on a double sided pcb…..
Plus the other issue is the 'sense wire' is too far away from the farthest USB connector when using the ATX PSU @5v

Weeeeeeeeee……

[ManeBjorn]

Lots of great info.
I was leery of the 49 ports hubs.  They looked great but other than the 333mh/s sticks I rarely saw them full with other types of USB ASIC's.

Yep that bitch is 20A clear……. and that's the constant current it can provide at 5v1
There is even room to slap in different PSU, but there is no need…

And yep I know they are not cheap…. if I could find a way to sell this stuff at $50USD there would be a massive market, that said , how many USB 2.0 hubs have we bought over the years… I have a massive box of them I use for spares….

I have a couple of other USB hub products in Metal cases I evaluated, but they fall down on the PSU, and by the time I costed a new case and integral PSU … they come out at about the same cost.


Since the Fury chips are highly dependent on the onboard regulators, the closer you can get to 5.X at the socket, the cleaner the regulation at the chip…

Once the supply at the socket comes down to 4.7-4.8 then the regulation goes on the buck convertor feeding the  Fury.

Seriously….. next time they used a buck convertor, they should have targeted one that could go as low 3-4v for it's supply rail…, very few devices give 5v at the USB socket…

This is why the 49 port hubs are dodgy…. you have the potential for 40-50A of current slopping around the tracks, ping ponging about at  MH bit rates…..
god only knows what all that inductance looks like on a double sided pcb…..
Plus the other issue is the 'sense wire' is too far away from the farthest USB connector when using the ATX PSU @5v

Weeeeeeeeee……

[razorfishsl]

Don't get me wrong…
It is possible to get a 49 port 'hub tree' or even greater…. but not like that.

I have a very nice design for a 20,40,60,80 but the problem is the cost,  to get decent manufacturing prices I would have to run 500-1,000 pcs
(yep I could EASILY manufacture myself… but end up contaminating my residence with Lead/antinomy/mercury compounds)(queue red neck with toaster oven)

Just how many customers would I have…?
No one in their right mind is going to be using USB sticks for that sort of mine setup, which would basically leave setups for manufacturing.

Yesterday I was watching CCTVn ,
which is like a China undercover reporting… Shock HORROR… they found government approved Plastic water pipe manufacturers using Medical waste and contaminated plastics for municipal water supply pipe…
Y…A….W….N…  they do EXACTLY the same with all the food products they manufacture for the Export market… toasters,water kettles, clip together food containers (which incidentally is WHY I NEVER buy such products.. all my shit is glass or stainless)

Unfortunately what most people what these days is the cheapest shit possible, even if they have to buy and replace it 10 times….

If there is such a curse as reincarnation, I want to come back as the dumbest banjo strumming MOFO on the planet, because Ignorance truly is bliss.

[ManeBjorn]

I had seen a bunch of stuff about that and also the chemicals that are in the food and clothing over there are terrible too.
No need for safety I guess when you have a billion+ disposable people as their government treats them like.

Don't get me wrong…
It is possible to get a 49 port 'hub tree' or even greater…. but not like that.

I have a very nice design for a 20,40,60,80 but the problem is the cost,  to get decent manufacturing prices I would have to run 500-1,000 pcs
(yep I could EASILY manufacture myself… but end up contaminating my residence with Lead/antinomy/mercury compounds)(queue red neck with toaster oven)

Just how many customers would I have…?
No one in their right mind is going to be using USB sticks for that sort of mine setup, which would basically leave setups for manufacturing.

Yesterday I was watching CCTVn ,
which is like a China undercover reporting… Shock HORROR… they found government approved Plastic water pipe manufacturers using Medical waste and contaminated plastics for municipal water supply pipe…
Y…A….W….N…  they do EXACTLY the same with all the food products they manufacture for the Export market… toasters,water kettles, clip together food containers (which incidentally is WHY I NEVER buy such products.. all my shit is glass or stainless)

Unfortunately what most people what these days is the cheapest shit possible, even if they have to buy and replace it 10 times….

If there is such a curse as reincarnation, I want to come back as the dumbest banjo strumming MOFO on the planet, because Ignorance truly is bliss.

[razorfishsl]

The issue is they are exporting this crap………

Final happy post for today


Why you should not buy cheap shitty hubs with phone charger PSU from China…




Here we see a good 73 VAC between the usb connector & the metal body of my computer….

These make ideal 'inheritance' gift sets.. and also account for WHY you should not answer your phone whilst it is charging and then go in the refrigerator or lean on a radiator…

Incidentally these are in contravention LVD regulations for Europe, shame so many  'big brands' actually import this crap….

Unfortunately many of the Testhouse engineers are too inexperienced to understand this… and usually fail to correctly identify it on the testing reports.

So next time you touch your computer and 'feel' something…(yes yes Calm down) it may not be static……

Rf

[bhai]

Ive read through the thread but what are the dimensions for this hub ?

rgdz,
bhai

[klintay]

Ive read through the thread but what are the dimensions for this hub ?

rgdz,
bhai

21cm x 12cm x 6cm

[philipma1957]

Yep that bitch is 20A clear……. and that's the constant current it can provide at 5v1
There is even room to slap in different PSU, but there is no need…

And yep I know they are not cheap…. if I could find a way to sell this stuff at $50USD there would be a massive market, that said , how many USB 2.0 hubs have we bought over the years… I have a massive box of them I use for spares….

I have a couple of other USB hub products in Metal cases I evaluated, but they fall down on the PSU, and by the time I costed a new case and integral PSU … they come out at about the same cost.


Since the Fury chips are highly dependent on the onboard regulators, the closer you can get to 5.X at the socket, the cleaner the regulation at the chip…

Once the supply at the socket comes down to 4.7-4.8 then the regulation goes on the buck convertor feeding the  Fury.

Seriously….. next time they used a buck convertor, they should have targeted one that could go as low 3-4v for it's supply rail…, very few devices give 5v at the USB socket…

This is why the 49 port hubs are dodgy…. you have the potential for 40-50A of current slopping around the tracks, ping ponging about at  MH bit rates…..
god only knows what all that inductance looks like on a double sided pcb…..
Plus the other issue is the 'sense wire' is too far away from the farthest USB connector when using the ATX PSU @5v

Weeeeeeeeee……

 I still have 1x 49 port hub  I use a 30 amp fuse not the stock 40 amp.  I run 38 antminers on it.  It works. but in no way is it the quality of this hub.
It could never run red fury or ice fury sticks well.   Does a good job with the ant miners. I rather have  3 of your hubs then the one 49 port hub , but the cost will hold me back.

[razorfishsl]

Yes….
I know the issue is the shipping and the price.

I can work on the shipping by using surface delivery, and possibly switching steel to aluminum, but metal tooling is not cheap…

But I don't even think there would be enough interest in a kickstarter.

[philipma1957]

Yes….
I know the issue is the shipping and the price.

I can work on the shipping by using surface delivery, and possibly switching steel to aluminum, but metal tooling is not cheap…

But I don't even think there would be enough interest in a kickstarter.

 

Well I am going to order at least one more.   Just waiting for coins to come in.

[philipma1957]

21cm x 12cm x 6cm
[/quote]


 I just took you up on the ebay second chance offer..  I need 110 volt usa. Paid via ebay-paypal.  this worked well as I am a bit short on BTC…  

[klintay]

 I just took you up on the ebay second chance offer..  I need 110 volt usa. Paid via ebay-paypal.  this worked well as I am a bit short on BTC…  

Thanks, voltage requested noted. Will PM you the tracking info once it is sent.

[philipma1957]

 I just took you up on the ebay second chance offer..  I need 110 volt usa. Paid via ebay-paypal.  this worked well as I am a bit short on BTC…  

Thanks, voltage requested noted. Will PM you the tracking info once it is sent.

cool thanks

[ManeBjorn]

Hey Everyone.
I just got my hub today and I have to say it's great!
Just to test it quick I put in 3x 333Block Erupters, 1x RedFury and 1x BiFury.

All 5 popped right up and right up to full speed no waiting several mins to half and hour for top performance that was a pleasant surprise.
They all co-exist with no weirdness.
I am running MultiMiner and it had no issues detecting and using anything in the hub.
I am going to try a 5gh/s Jalapeno on it later this weekend as well as some more USB's.

Razorfishsl shipped this very fast, it actually showed up yesterday but snow kept my mail-lady from coming on the porch so I had to wait until today.
The packing was safe and secure and the unit arrived in perfect condition.
He also kept track of the shipping on his end and is very easy to work with.

Thanks so much I will be buying another in a few weeks as this unit ROCKS!!!!!!!!!!

[razorfishsl]

Also Guys,

There is no reason you cannot power you PI of these, I suspect the PI allows power via the USB connectors.

Just don't try and run any heavy graphic simulations that pull too much power as the  re-settable fuses may cut in.  (FIXED!!! Mar-2014)


RF

[jedimstr]

Does the 6% BTC discount apply to the grand total including shipping, or only on the hub cost itself (not shipping).

[klintay]

Does the 6% BTC discount apply to the grand total including shipping, or only on the hub cost itself (not shipping).

grand total

[madao]

Hello,
I was pleased with my hub and was considering whether to try to gather interest over in the Scandinavian sub-forum in pooling our resources for a 6+ unit order to save on shipping and get the volume discount.

Felt it would be good form to ask you first before I solicited a purchase.
Naturally, I would organise everything on my end and you would deal only with me in terms of payment and shipping.

[klintay]

Hello,
I was pleased with my hub and was considering whether to try to gather interest over in the Scandinavian sub-forum in pooling our resources for a 6+ unit order to save on shipping and get the volume discount.

Felt it would be good form to ask you first before I solicited a purchase.
Naturally, I would organise everything on my end and you would deal only with me in terms of payment and shipping.

thanks for informing us first, i appreciate it. I think it is a good idea, let me know the details when you get everything sorted. Chinese New Year holiday is over now so no problems with delays on our end. Message me anytime if you have any questions.

[madao]

Hello,
I was pleased with my hub and was considering whether to try to gather interest over in the Scandinavian sub-forum in pooling our resources for a 6+ unit order to save on shipping and get the volume discount.

Felt it would be good form to ask you first before I solicited a purchase.
Naturally, I would organise everything on my end and you would deal only with me in terms of payment and shipping.

thanks for informing us first, i appreciate it. I think it is a good idea, let me know the details when you get everything sorted. Chinese New Year holiday is over now so no problems with delays on our end. Message me anytime if you have any questions.

Thank you for  your response

FYI here is the thread!, https://bitcointalk.org/index.php?topic=454031.0
hope to be in touch soon.

[capa]

Hi,

These look great, i will PM you for one right now.

nice work

[klintay]

Hi,

These look great, i will PM you for one right now.

nice work

Do you want to pay with paypal or btc?

[capa]

Hi,

These look great, i will PM you for one right now.

nice work

Do you want to pay with paypal or btc?

Hi klintay,
Thanks for your reply to my post. It's all been sorted for me already
I'll post again when I have it in hand.

[klintay]

Hi,

These look great, i will PM you for one right now.

nice work

Do you want to pay with paypal or btc?

Hi klintay,
Thanks for your reply to my post. It's all been sorted for me already
I'll post again when I have it in hand.

great leave a msg in the thread once you receive your item

[capa]

I received my hub, it's the business

[codice]

Just received the USB hub I ordered from razorfishsl last week. 
Ordering was very quick and easy, and razorfishsl provided updates at every step.
Shipment was quicker than I expected, and the hub arrived in perfect condition.

I've populated it with 8x Antminer U2 and 1x BFL Jalapeno to test it. 
Seems to be working flawlessly after tweaking some of the bfgminer options.  Best of all, no hardware errors whatsoever on any of the Antminers after 30 minutes:

Code:

 bfgminer version 3.10.0 - Started: [2014-03-19 01:37:25] - [  0 days 00:27:14]
 [M]anage devices [P]ool management [S]ettings [D]isplay options   [H]elp [Q]uit
 Connected to stratum-lb-usa48.btcguild.com diff 8 with stratum as user XXXXXXXX
 Block: ...99e42bba #291242  Diff:4.25G (30.42Ph/s)  Started: [01:59:02]
 ST:14  F:0  NB:6  AS:0  BW:[ 73/ 81 B/s]  E:66.67  I:  107uBTC/hr  BS:67.1k
 9/10   39.0C | 23.24/24.66/21.31Gh/s | A:1068 R:3+3(.39%) HW:53/.65%
---------------------------------------------------------------------------------
 AMU 0:       |  2.10/ 2.24/ 1.79Gh/s | A:  95 R:0+0(none) HW: 0/none
 AMU 1:       |  2.29/ 2.23/ 1.69Gh/s | A: 103 R:0+0(none) HW: 0/none
 AMU 2:       |  2.39/ 2.24/ 1.81Gh/s | A:  76 R:0+0(none) HW: 0/none
 AMU 3:       |  1.77/ 2.24/ 1.83Gh/s | A:  95 R:0+1(.54%) HW: 0/none
 AMU 4:       |  1.96/ 2.20/ 1.79Gh/s | A:  96 R:0+1(.53%) HW: 0/none
 AMU 5:       |  2.25/ 2.22/ 1.83Gh/s | A:  90 R:1+0(1.2%) HW: 0/none
 AMU 6:       |  2.06/ 2.24/ 1.79Gh/s | A:  93 R:0+1(.56%) HW: 0/none
 AMU 7:       |  2.00/ 2.23/ 1.87Gh/s | A:  95 R:0+0(none) HW: 0/none
 BFL 0: 40.0C |  6.90/ 6.86/ 6.93Gh/s | A: 326 R:2+0(.48%) HW:53/2.0%
---------------------------------------------------------------------------------

Highly recommended. The hub may seem a little expensive, but it's well worth the price.

Many thanks!

[razorfishsl]

Hi,
Glad you received it in good condition and  I see it is performing well.


Yesterday I was working on a new project  using this hub and a some flash drives i purchased in China over the weekend
 I'm thinking WTF is that burning smell, but put it down to the locals roasting some cats on the BBQ's they like to have.
Nearly an hour later I identified it was from near the hub, tracked it down to one of the USB flash drives.

Opened up my hub expecting to see something burned as well but there was zero damage, the poly-fuse had cut in and protected the other devices, power supply and PCB (that's the hub pcb)

This is the second time this month that the hub has saved me a shit load of heartache, the first was on a load of USB->Ethernet adaptors, where they had wired the  power rails backwards!!!!

Normally with such failures on an "ebay hub" you would see the PSU dump the whole current onto the faulty device until  the short is burned out!!
Which results in all sorts of damage and possibly a house fire.




When you consider how many USB 2.0 hubs you purchased over the years , plus considering this hub has a life expectancy of years it really is good value for money.

Plus with this hub you can power a PI from it and mine all from one power supply, instead of needing a separate PSU for the PI

As Guy Kawasaki pointed out "you can compete on price or quality" ;-)

RF

[ManeBjorn]

That is great news and bad news all at once.
Great that the hub is that solid.  Mine works great.  I have added Ants and DualMiners to it for testing and my 20 gh/s Jalapeno.  No issues what so ever.  A Pi will be running off it eventually as well.
The bad news is you have that nasty burnt smell in your house. 

[razorfishsl]

Yep,
It once again highlights why buying Nand flash  sticks in China is a high risk proposition, I just wanted them for the  viri they come pre-installed with.

Also if during your research you find the hub won't power the PI due to the power requirements PM me directly I already have a solution.

 I've been working on a Quad core mining controller which I finished the new kernel build for a couple of days ago but I also ran into issues with peak current consumption.

RF

[ManeBjorn]

Wow you have a bunch of irons in the fire.  I will let you know if it does not power it.  I hope to have a review unit in a couple weeks for my article.

Yep,
It once again highlights why buying Nand flash  sticks in China is a high risk proposition, I just wanted them for the  viri they come pre-installed with.

Also if during your research you find the hub won't power the PI due to the power requirements PM me directly I already have a solution.

 I've been working on a Quad core mining controller which I finished the new kernel build for a couple of days ago but I also ran into issues with peak current consumption.

RF

[klintay]

These hubs are great but i am quite excited now about how the 49 port hubs work

https://bitcointalk.org/index.php?topic=528371.0

[razorfishsl]

These hubs are great but i am quite excited now about how the 49 port hubs work

https://bitcointalk.org/index.php?topic=528371.0

Why go all the way over to that thread, when I can supply exactly the SAME product that has been professionally tested by Qualified engineers?

Just PM me for a quote

[philipma1957]

These hubs are great but i am quite excited now about how the 49 port hubs work

https://bitcointalk.org/index.php?topic=528371.0

Why go all the way over to that thread, when I can supply exactly the SAME product that has been professionally tested by Qualified engineers?

Just PM me for a quote

I purchased from you and from klintay  19 port hubs I have 3 of them and they are really nice.

[razorfishsl]

Hi Philip,
I'm glad you are happy with your purchase.
The 19 port hub is one of the few products I am happy to leave switched on 24 hours a day/ months on end, 90% humidity. So far it is also the only hub that has not damaged my USB controller in my mac , nor overloaded the samsung SBC's I use.

But yes, your quick analysis on 'ATX' power supplies is fairly close to the mark,  anyone with a screwdriver, half a brain and google can quickly look up the specification of the  internal switching components of the ATX and  can soon realize most of the  ratings on the ATX cases are complete bullshit, you only then have to cut a wire and count the wire strands.

I have 2* 50A@5v PSU I designed for FPGA mining back in the early days and even with single strand 2.5mm2 copper( 300v mains) the wires get hot…….

Legally many ATX are just skirting the regulations for  consumer labeling requirements on honesty (in a pinch even a car engine can be started from a couple of 4R25 batteries, so technically you could state that they can supply 400A, the fact that they may melt and are totally destroyed is irrelevant)

Perhaps one of the worst things I have ever seen in  a Chinese made ATX, was a 110/220 conversion done via a diode, rather than utilize a tapped transformer , they decided to save the cost of the copper windings by using the diode to 'clip' the mains cycle by 50% producing a shitload of heat and more filth(EMI) than a german porn movie.


I've been less active on the forums recently due to new projects and  hope to post some new designs I have been working on that will further enhance the lifetime of the 19 port hub with the new multi chip bitfury miners.

But basically unless I have 100% personal faith in a product I will not sell it.

RF

[Operatr]

I received my hub safe and sound yesterday, works great and my Dualminers are happily hashing away, thanks razorfishsl!

[klintay]

Just to let everyone know here that i am no longer working with RF. There is no connection between us.

Here is what he has been saying about our "business relationship"

OK…..
So here we are, after my last post  clarifying the situation:

Show and tell
1. Further mis-representations: If someone came to you and asked you to setup a  system using PP split-payment API, where they received 50% of the money for physical goods they did not ship… how long would it take 'you' to setup such a potentially fraudulent system, or would you just keep dragging it out with excuses?
2. Would you setup a website on a domain name and server controlled  by a guy you only just met, who openly boasted about HOW he fucked his 'book selling ' partner over and wanted to setup a 'limited liability company in Hong Kong' with you…. ?

Personal character
2. Harassing phone calls to my mobile phone, sometimes as many as 5 a minute, because  the curtain has been pulled back in OZ.
3. A definition of what "rework" means http://scn.sap.com/people/rupesh.brahmankar3/blog/2013/07/06/rework-in-manufacturing
for those who don't understand the difference between 'rework" and Having to open, inspect, remove,repackage and test cable sets then having to completely repack goods.
4. Offensive pm's + Further falsifications (it is the first I heard….), then WHY did you state it was TRUE in your PM). (see below)

fuck off out of my thread. It is for people interested in buying the hub not for you to whine like a fag, Mr Steve Green you fucking cunt.

You never reworked that shit or at least you never told me. You told me that they were in fact in good condition. All you ever got were new cables.

6. Yep the 'blue fury', go read up interview techniques and evaluating potential business partners, with this simple but effective test I get a complete breakdown of a persons 'claimed' area of expertise.(I could just have used google!!)
 Did it NEVER enter your thought processes of how at 21 I was the technical director of an electronics company turning over $20million a year If I was such a 'fuckwit" with electronics?
Correctable traits
7. A complete inability to articulate conversations as an adult, with valid point of contention.
8. A complete inability to get my name right..
9. The use of 'shill' accounts to promote himself in his own threads.

AGAIN I will state this:

Sour grapes….  

There was a parting of the ways due to your 'business ethics' that is all, I also have the right to dispute any false statements to protect my reputation.

I think with each passing day, this conversation justifies my decision.


RF

In attempt to discredit me because he doesn't like the fact that I undercut him in prices...how pathetic... he has twisted all the facts he knows about me. As if half truths could prove things that can't be found on the internet in the first place! Like for example trying to suggest i screwed over my other partner in a different business venture, when in fact we are still working together (I only told Steve that my business partner was a little lazy due to the fact that his wife just had kids and I was unhappy to have such a heavy work load because of it).

Anyway read what he said and then see the truth for yourself. Its lucky that i kept all these messages. They certainly paint a different picture to the one that Razorfish is trying to past off as the truth.

The truth:








The real reason we split up from Steve (i.e. Razorfish)

[vs3]

Guys - dragging your dirty underwear here is probably not the best way to resolve your issues ... that is unless you're trying to drawn each other...

What happened in the past happened in the past. Leave it in the past.
If there are lessons to be learned - learn them. Then find a way to bury the axe. And move ahead. Don't stay stuck in the past.

If you really insist on proving to each other who was more right and who was more wrong - take it to a court. Those forums are not courts.

Each of you has come up with a different product. The market is big enough for both of you.

Just my 2c.


edit: Just cut the crap and get back to business.

[razorfishsl]

New Hub thread available here:

https://bitcointalk.org/index.php?topic=560003.0

[klintay]

We have the 19 port hub in-stock again! Same great quality and price! Immediate shipping!!

Bitcoin
1-2 hub - $155 usd
3-5 hubs - $150 usd each
6+ hubs - $140 usd each

Bitcoin Payment Address: 16NqeYCSwU8fx7FhEpQiuYGaQJgssDuuwS

Paypal
1-2 hub - $160 usd
3-5 hubs - $155 usd each
6+ hubs - $150 usd each

There are two shipping methods:

1. Registered Airmail: $40 usd (5-8 days shipping)
2. Speed post: $70 usd (2-5 days shipping)

Please follow the details on the thread for details about payment. For btc please use the coinbase usd/btc exchange rate at time of payment.

I also have power cables for US/UK/EU  

[bitmanaus]

http://blockchain.info/tx-index/c5d213962751b47ac02130ff175fe67d4e41350475f0388d7252a8f1495fa568

Purchasing 8 please! ~$112.8 per unit, plus shipping. Very much looking forward to receiving them.

UPDATE
One unit received and loaded up:

https://dl.dropboxusercontent.com/u/9817077/IMG_20140201_123915.jpg
16 Yellowjackets... mmm...

https://dl.dropboxusercontent.com/u/9817077/Screenshot%202014-02-01%2019.25.20.png
All overclocked to 54 oscillator bits, there don't seem to be any power-related error messages; it seems rock solid

Very happy, can't wait to get the rest!

looks neat man whats your power draw? and what are you using as the controller?

[bitgtr]

Using my Windows desktop as the controller. Power draw, good question - I don't have the tools to measure that. At a guess I'd say 0.7A@5V * 16 = 56W.

[klintay]

Using my Windows desktop as the controller. Power draw, good question - I don't have the tools to measure that. At a guess I'd say 0.7A@5V * 16 = 56W.

Nice if you want some Twin Chip Bitfury Miners (4-5 gh/s) I have them for $35 usd each

[klintay]

Same hub, same great quality:

Price

Bitcoin
1-2 hub - $140 usd
3-5 hubs - $135 usd each
6+ hubs - $130 usd each

Paypal
1-2 hub - $145 usd
3-5 hubs - $140 usd each
6+ hubs - $135 usd each

https://bitcointalk.org/index.php?topic=418087