Now that usb sticks are being sold by sidehack here is a new usb hub thread.

[TheNerdyType]

Aha! Thanks for finding that (2.1A shared). I looked for it briefly, but couldn't find it right away. Of course they buried it in the description paragraphs, rather than showing it in the tech specs. So, it wouldn't really work as I thought if the 2pacs were overclocked. Shrug.

[TimBuck2]

and what are you going to power it with?

Both ATX PS are 38A on the 5v rail

it looks like it has a 24 pin  jack  and nothing else.

Yes, just the 24 pin socket, however that could easily be jumped and wired straight into my 75 amp Astron (adjustable) PS .... Don't get carried away - I am not planning on doing that. hahaha.

I am still deciding exactly what I am going to do with these things when they get here. I just bought an L3+ this weekend and I could either run 14 per board (which leaves plenty of headroom) and play the lottery with those or run them with the L3+ pool which would give me about 630 mhs +/- or become a scalp-er on eBay and make all sorts of money.

Maybe I could sell one Blok Erupter 48 Port Hub, 14 ML2's, and an ATX PS all together in a bundle. If one sells, do the other one too.

[TheNerdyType]

Here's a simple little documentation of my setups.

https://www.amazon.com/photos/share/SCgYi97ESptqChXcE2HGQltCIz6AVj2wqDo88FbKR0f
This one is a single 2pac running 225Hz on an Amazon 4 port USB powered hub and a simple 5v fan. It's pretty much rock solid and throws almost no hardware errors. Anything above 225Hz won't start up. Seems like that is the maximum power the hub can provide. At $16, it's a pretty good power source. It's all connected to a mid-2009 MacBook Pro running cgminer.
http://a.co/bsDqq3V

https://www.amazon.com/photos/share/HAuMqFj9F6HrL2IkzzJsHAzD60JMULvtKqNYAgn2pOu
This one is more complex. I have a Plugable 7 port USB2 hub running 3 2pacs running at 200Hz and an Arctic fan. Occasionally one or two devices will zombie out, but it runs well for a day or two. I also have a 5v fan pointed at the top 2pac to keep it cool. All is connected to an older miniPC running Ubuntu 16.04 and cgminer. I've found that if I try to push the miners to 225Hz, two of the three fail to start. I have plans to split out power to an ATX power supply and try to push the freq above 200Hz.

That's it for now.
The Nerdy Type


(Moderator's note: This post was edited by frodocooper to remove inline image tags.)

[avulsionist]

I found this hub on Ebay while looking for the famed SuperBug.
https://www.ebay.com/p/60w-Multi-7port-USB-Charger-12a-Rapid-Charging-Station-Desktop-Travel-Hub-iPhone/9012536138?iid=322670493147&_trkparms=aid%3D222007%26algo%3DSIM.MBE%26ao%3D2%26asc%3D48420%26meid%3Df9129ae088754d37a3cc3c0b065490f8%26pid%3D100005%26rk%3D4%26rkt%3D6%26sd%3D232634766486%26itm%3D322670493147&_trksid=p2047675.c100005.m1851

Claims 5V input -60 Watts / 12 Amps 7 ports

If it's true, would be a good power supply, or y-cable mod but kind of pricey.

I went with the plugable 7 port 60W and run 3 at 225MHz and an arctic breeze fan with no problem.

[klintay]

we have a bunch of 3A 20A 40A usb hubs just in from Sipolar now available:

https://www.eyeboot.com/sipolar-16-port-usb-hub.html
https://www.eyeboot.com/sipolar-20-port-usb-hub.html
https://www.eyeboot.com/sipolar-10-port-usb-hub.html

Special offer for first 500 pieces
Will be posting screenshots soon  

[zachj00]

I found this hub on Ebay while looking for the famed SuperBug.
https://www.ebay.com/p/60w-Multi-7port-USB-Charger-12a-Rapid-Charging-Station-Desktop-Travel-Hub-iPhone/9012536138?iid=322670493147&_trkparms=aid%3D222007%26algo%3DSIM.MBE%26ao%3D2%26asc%3D48420%26meid%3Df9129ae088754d37a3cc3c0b065490f8%26pid%3D100005%26rk%3D4%26rkt%3D6%26sd%3D232634766486%26itm%3D322670493147&_trksid=p2047675.c100005.m1851

Claims 5V input -60 Watts / 12 Amps 7 ports

If it's true, would be a good power supply, or y-cable mod but kind of pricey.

I went with the plugable 7 port 60W and run 3 at 225MHz and an arctic breeze fan with no problem.

I agree with avulusionist, the plugable 60W 2.0 hub is by far the best option IMO.  its 29.99 on Amazon, a lot cheaper option than some of these other hubs + offers more power.

[QuarterMaster]

I am using the Plugable 60W USB 2.0 hub and it does work fairly well as long as you know its quirks.
Quick guide to follow:

• Stated before but 3 sticks is the max. I don't care what speed you run them at, stock or over clocked 3 is the max.
• Must run on ports 1,3,5 or 2,4,6 and a fan can go into slot 7 but it draws from port 5,6,7 combo. I run my fans with a separate supply.
• Max frequency you can run the sticks at and not have it go zombie or get a USB error is 237.50Mhz and that may be pushing it as each hub may differ slightly  (225 Mhz might be more stable for you).
• If you lose power for any reason you must manually push the power button to turn it back on. Use a small UPS to keep it alive if you plan to run unattended.
• Set voltage to the lowest setting .69 - .70 across the ASIC voltage and you shouldn't get any hardware errors
• 237.50Mhz should get you between 72Ghs - 76Ghs
• Supplied power brick is reliable and only gets warm not hot
• Over all price point is great
• I ran 3 sticks at 250Mhz for a while but eventually one stick goes zombie or you get a USB error. Might be 30 minutes might be 6 hours but it happens every time at that frequency. You also have to up the ASIC voltage to .70-.71 to get no hardware errors.

If you are good with all of that I would recommend getting them.

How to measure the ASIC voltage see here
https://bitcointalk.org/index.php?topic=1764803.msg17678108#msg17678108

[QuarterMaster]

we have a bunch of 3A 20A 40A usb hubs just in from Sipolar now available:

https://www.eyeboot.com/sipolar-16-port-usb-hub.html
https://www.eyeboot.com/sipolar-20-port-usb-hub.html
https://www.eyeboot.com/sipolar-10-port-usb-hub.html

Special offer for first 500 pieces
Will be posting screenshots soon  

Went ahead and ordered the 10 port model as it is the only one really suitable for running the sticks 250Mhz-275Mhz by providing up to 2.1A per port.
https://www.eyeboot.com/sipolar-10-port-usb-hub.html

Ordered through Amazon today so should see it in about a month
https://www.amazon.com/gp/product/B01K4MZQJ8/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1

[CreativeReef17]

As I discovered with my 7-port, 60W charging hub from Plugable -- pop it open and look at how the power is distributed.

On the Plugable, it takes 12vdc in and has 3 buck regulators taking that down to 5v  for the USB plugs. That said... 1 regulator feeds ports 1 & 2, the 2nd regulator feeds ports 3 & 4, the 3rd feeds ports 5-7. See where this is going?

Given that you can only use 3 ports, do you still need 60W or is the 25W unit acceptable.  I would be using the Pluggable 7 port hub to run a couple 2PAC sticks and I can order 2 Pluggable 25W units for the price of the 60W unit.

CreativeReef

[avulsionist]

I am using the Plugable 60W USB 2.0 hub and it does work fairly well as long as you know its quirks.
Quick guide to follow:

• Stated before but 3 sticks is the max. I don't care what speed you run them at, stock or over clocked 3 is the max.
• Must run on ports 1,3,5 or 2,4,6 and a fan can go into slot 7 but it draws from port 5,6,7 combo. I run my fans with a separate supply.
• Max frequency you can run the sticks at and not have it go zombie or get a USB error is 237.50Mhz and that may be pushing it as each hub may differ slightly  (225 Mhz might be more stable for you).
• If you lose power for any reason you must manually push the power button to turn it back on. Use a small UPS to keep it alive if you plan to run unattended.
• Set voltage to the lowest setting .69 - .70 across the ASIC voltage and you shouldn't get any hardware errors
• 237.50Mhz should get you between 72Ghs - 76Ghs
• Supplied power brick is reliable and only gets warm not hot
• Over all price point is great
• I ran 3 sticks at 250Mhz for a while but eventually one stick goes zombie or you get a USB error. Might be 30 minutes might be 6 hours but it happens every time at that frequency. You also have to up the ASIC voltage to .70-.71 to get no hardware errors.

If you are good with all of that I would recommend getting them.

How to measure the ASIC voltage see here
https://bitcointalk.org/index.php?topic=1764803.msg17678108#msg17678108

Thanks for this. Have the same hub.
Question: Any luck chaining them together? I have 4 2pac's and have been trying to get the 4th to keep running but no matter what powered hub I try it runs for a few hours then stops.

I ask because I am using a RPi W with one USB port.

Thanks

[QuarterMaster]

Thanks for this. Have the same hub.
Question: Any luck chaining them together? I have 4 2pac's and have been trying to get the 4th to keep running but no matter what powered hub I try it runs for a few hours then stops.

I ask because I am using a RPi W with one USB port.

Thanks

No, running on a windows server so plenty of USB ports. I do have one of these that I run 3 Pod miners through (non powered) and it works great.
https://www.amazon.com/StarTech-com-Mountable-Rugged-Industrial-Port/dp/B003AVPUZG
(cracked open the above linked hubs and they only have 2 regulators in them so 2 sticks max no matter how much power you put into it)

I would try a good non powered 2.0 hub plugged into your RPi then 2 of the Plugables powered hubs into that - 2 sticks each Plugable hub. If you already have another powered hub then try both of those into the basic hub, see if that gets you any farther without a drop.

[QuarterMaster]

As I discovered with my 7-port, 60W charging hub from Plugable -- pop it open and look at how the power is distributed.

On the Plugable, it takes 12vdc in and has 3 buck regulators taking that down to 5v  for the USB plugs. That said... 1 regulator feeds ports 1 & 2, the 2nd regulator feeds ports 3 & 4, the 3rd feeds ports 5-7. See where this is going?

Given that you can only use 3 ports, do you still need 60W or is the 25W unit acceptable.  I would be using the Pluggable 7 port hub to run a couple 2PAC sticks and I can order 2 Pluggable 25W units for the price of the 60W unit.

CreativeReef

Not sure anyone has cracked open the smaller 25W unit to see how many voltage regulators it has. The 60w one has 3 shared between 2 ports, 2 ports, 3 ports so we know how it works. The 25w may only have 1 regulator that splits up the current between all ports which could mean drops for the 2Pac sticks if running more than 1. All depends on how they are set up.

[QuarterMaster]

So this is what I am using to run 6 at 243.75Mhz for about 150GH/s - 85 Watts at the wall.
I also put small fans on each stick.
https://imgur.com/a/uJbPg


Moderator's note: This post was edited by frodocooper to remove inline image tags.

[klintay]

So this is what I am using to run 6 at 243.75Mhz for about 150GH/s - 85 Watts at the wall.
I also put small fans on each stick.
https://imgur.com/a/uJbPg

wow nice rig! It is the 10 port sipolar hub right? We just got new stock in yesterday, they are available for sale here:
https://www.eyeboot.com/sipolar-10-port-usb-hub.html

BTW, We just started a USB stickminer sale:
https://bitcointalk.org/index.php?topic=3316001

Limited offer while stocks last!


Moderator's note: This post was edited by frodocooper to trim the quote from QuarterMaster.

[CreativeReef17]

Not sure anyone has cracked open the smaller 25W unit to see how many voltage regulators it has. The 60w one has 3 shared between 2 ports, 2 ports, 3 ports so we know how it works. The 25w may only have 1 regulator that splits up the current between all ports which could mean drops for the 2Pac sticks if running more than 1. All depends on how they are set up.

Thanks, I probably will just stick to what works but I was trying to save some money.

CreativeReef

[pasuljeffreys]

Have a quick question as still relatively new to mining things...

I have this hub: https://www.newegg.com/Product/Product.aspx?Item=9SIADA26E73842

Which works fine with 2 of the GhekkoScience ASIC miners in it (2 x https://smile.amazon.com/gp/product/B06XBWK2W5/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1 and 1 similar but from a different supplier on Amazon)...

But whenever I plug my 3rd miner into it, the 3rd one drops from 15Gh/s to around 20Mh/s... Am I doing something stupidly noob with things? The USB should be able to handle it shouldn`t it?

I aim to upgrade things eventually to the 10 port one mentioned in this thread a few times, but for now, 3 of the miners in this Hub should work shouldn`t they?

I have a small desk fan which is keeping the 2 in there now nice and cool so I really want to be able to plug the 3rd in in there also as currently I have to have it in one of the other PC USB ports in order to keep it running at 15Gh/s but this means I don`t have it close to a fan and so is going to overheat a lot...

Anybody know what I`m doing wrong or able to point out the probably obvious thing to everybody else thing I haven`t likely done to run all 3?

 *Edit*
I may be a complete muppet and have this plugged in to a USB2 port... I will need to wait until I get home to confirm but this would likely result in the above issue wouldn`t it with the lower transfer rates?

Pj.

[cozk]

What is this ? 2013 ?

[pasuljeffreys]

Not sure, but I am new to the whole mining thing..

I checked last night and I am definitely plugged in to the USB 3 ports, but whenever I plug the 3rd mining stick into the Hub (also USB 3), I get 2 x xxGh/s and the third drops down to around 6Kh/s...

I don`t understand what I`m doing wrong with things...

Pj.

[sidehack]

What is the third stick? Your previous post makes it sound like you have two 2Pacs and one of something else.

[pasuljeffreys]

Ah, sorry, they are all 2PACs, just from differently named suppliers through Amazon (BitMiner Joe, ZLR Inc and I can`t find the 3rd for some reason).  It also seems that it isn`t consistent which one drops... If I remove  any of the sticks, to leave 2, then the 2 remaining return to around 10Gh/s... But they are all the same 2PAC usb stick... It`s just when I have all 3 in the hub that it happens... Plug the 3rd into another USB port, even a USB2 port, all is as it should be again...

Pj.