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http://www.lketc.com/engoods/47.aspx
http://www.lketc.com/engoods/show/252.aspx

Factory have opened English pages. Or trying :)

New price for next week delivery is ¥ 18700 (5.16 BTC) DHL shipping included.

So they are going to Bitmain way and starting to do direct sales.
I have not yet to order from them directly but planning to do so when i get the BTC i need.

https://i.imgur.com/VtW6As4.jpg

OEM price for this miner box ex. chips seems to be ¥ 6000 (1.66 BTC)
While chips are getting cheaper theres alot room for miner price to drop :D

We all love Bitmain but this miner has fancy LCD and all. I am hoping to see Minepeon custom image for RaspberryPi soon and this miner is sexy!!

http://www.lketc.com/goods/show-292.aspx

The order details page (shipping address, etc) is still in Chinese. Is there an English checkout process?

Hopefully English pages gets better in next days. They are in real rush to deliver and make those miners. Shipping out +600 miners next week.
I made account there with google chrome translate some time ago and with that i can push the order to checkout fine. I just dont have the BTC or i would order instantly.

I Have not ordered from them before none can blame me if they get into trouble with this  ;D

Checkout page is still in Chinese. This is translated with Chrome.

http://imgur.com/11wqJWA

anyone ordered and got something from them already?

sending BTC to some new page is a bit... hit or miss ;D

I take it this is the miner that is being sold on minersource.net for $5,399?

https://minersource.net/products/1-th-slash-s-28nm-miner

Phil

Correct.

Uf $3000 and $5399 this is big difference in price :-\

So how do we know this isn't a scam? Very interesting price

I seriously doubt we'd get the $3000 China price for the US.  Everyone of those clones are going for $4-$5k, outside of China at least.

Interesting ! Watching

Way too big, will make shipping it a pain. And it would be hard to scale up.

are they shipping in EU ?

They are Chinese company so I would say shipping is from China.

I'm all for making 25%+, but 60% seems like a hell of a markup.
Regards

http://www.lketc.com/goods/35/2.aspx

Factory dropped price. It was  ¥  27000 for march 10 batch thats 4333$ ex shipping.
They say that site they can sell miner for about 1100$ excluding chips so it all comes to Innosilicon and how fast they will drop chip prices. Bitmine.ch has lost this. Trying to get working miners out for people who paid 6000$ for 1TH rigs and are still missing their miners. Same time Chinese show how it is done. Cheap and fast all that matters.

Anyone have an idea if you can get discounts if you order more than one? Tried adding support on skype but yet to be seen online

If I were you I would simply pay the higher amount and just deal with member pcfli as he has had many deals that are trusted and you can use escrow. I am sure he will offer discounts of multiple miners. I am just not comfortable sending money to an unknown website that may or may not be real. Just my opinion...here is a link to the thread.... :'(

https://bitcointalk.org/index.php?topic=514758.0

Yea I did that but didn't get a response. He's charging at least $650 markup per miner and I asked for $200/miner if I bought 3. Maybe not worth it for him but in that case I'd rather talk directly with factory and see if I can a discount instead.

That lketc site is pretty damn shitty though which isn't that professional.

Yeah that is why I am not sure whats up with it..I am sure that there are many other places over there that are cheaper but its just hard to find one..Good luck! I am sure if you stay checking with pcfli he will hook you up..

I'd order one for 3k cash today if they were available in the US.

I'm trying to register on the site but it wants *Identity card number. What is this?


Phil

ID card :)

Some countries have 3 ID cards - Passport(used when you travel) - ID card(have to have with you all the time) - Driving Licence

unknown site takes BTC and asks for your ID card? seems legit...

Dude its China.

They even ask ID to be on the Internet. Trust me. And every Chinese has this I.D.

Unknown site outside China. Lketc domain and that brand + logo can be seen in every Dragonminer settings page. Unless reseller removed those.
https://bitcointalk.org/index.php?topic=504793.msg5806722#msg5806722

Dragon Mining Technology Group Co., Ltd.

To :

Dragon Mining Technology customers!

2014.03.20 shipment summer after grade 1T upgraded version of the mining machine as VER 1.2 .

The new version of the machine is updated as follows:

1 Xia class 1T mining machine software upgrades as: network automatically, mining difficulty to choose from.

2 Display the contents of the increase: IP address is displayed, the chip temperature display, count force display, user-friendly and intuitive management of the mining machine.

(3) increase the over-temperature protection functions: Chip normal operating temperature of 90 degrees Celsius, under unusual circumstances chip temperature exceeds 90 degrees Celsius, the display switches to red, white alternating alarm, time must be shut down immediately troubleshoot problems before the end of the boot. (If the problem is not resolved, please contact customer service www.lketc.com )

4.VER 1.2 adapter plate used, operator panels, cable, SD card running the software are not backward compatible.

Summer grade 1T mining machine VER 1.1 ( 3 March 15 before number) does not start automatically with user features, the new version can be purchased if needed SD card at the following address: http://shop107935807.taobao.com/?spm=0.0. 0.0.PCtWMJ


Note:

Panel displays the temperature is the temperature of the IC chip, not the heat sink temperature 60-95 degrees normal temperature

1 external chassis are tamper stickers, tearing not guaranteed.

2 mining software has done packers processing, anti-malware software modifications.

3 due to display with over-temperature protection, not dismantled, in violation of warranty.

4. the machine inlet to keep them open, the working environment humidity is not too high.

5. purchase 15 days of machine replacement, 15 days after the lifetime maintenance (parts zero profit, zero artificial replacement).

Translated from source:
http://www.lketc.com/news/show-329.aspx

Anyone in the us able to proxy/resell? I've got 3k for a th of mining equipment.

Resell price is going +4k$ atm.  ;)
You pay always more buying from a reseller who buys it from agent in China who buys it from factory...

Factory has no english customer service.

Pls delete

Yea, I apologize if you took offense, wasn't my intention. I am still considering ordering from you, haven't made up my mind yet. Is PSU included?

Apologize is not necessary, i just try to declare why i charge 650$ mark up, As for your question, yes psu is already installed in the miner and you just need to get the power cable and net cable connected to get the miner work.

I have just come to agreement of purhacing 1 Dragon miner unit from pcfli and paid it already.

I ordered three yesterday directly from lketc.com

They look legit.

Also their online stock also deducted from 29 to 26 after my order confirmation.  ;D
I paid with BTC and it got confirmed like bitmains order procedure.

I will post for anything new.

To be honnest I am a little scared now.

I wanna talk myself into ordering as well.

Give it a try.

We can cry together later.


 ;D

I talked with skype support (who speak english) and they are willing to write a lower amount on the invoice, making it an even better investment. I'm still hesitating though because I live in a 65 sq m2 appartment and I think it might be too loud? I can close the door to the room I'll have them in but still. Anyone can give me any insight in how loud miners are? I am also a little scared of the fire hazard. Who know's if these things will catch fire in my newly bought very expensive appartment..

Plus that I have no idea how to pay for stuff with BTC.

I am also trying to talk myself into buying..

Where are you located?

Stockholm, you?

If it turns out to be too loud, you could always contact anotherhost, they're located in Stockholm (although like KnC, now host mining equipment in the north)

I am located in Athens, Greece.

Just be carefull when ordering, because as we are in EU, customs require a Declaration of Conformity certificate for electronic equipment. Lketc.com does NOT provide any.

There are some tricks to avoid it.

If need help , pm me.

Oh yea, didn't think of that. I'll send you a pm





Is it possible to control it remotely?

Anotherhost provides VPN login, which you can SSH and HTTP access your miner

How much value lktec declares ?

They say they can put whatever you request.

is this necessary, i am run a host plan and i think this is not necessary and will lead to security problem

What did you put in for the ID Card #? Your passport? Drivers License?

Phil

Does not matter, put anything to make the "tick" appear!

 :)

Can anyone share the skype id of their customer service?

Are these guys the company that manufacturer the dragon machines?
Will be interesting to see if this English site works  ;D

You will need to translate every step.

Be careful!

What was the eventual full price including delivery if you don't mind my asking (PM if necessary)

as ive stated before that sites hosting malware.. visit it if you want ...

I ordered 3 pieces with price of 5.31 BTC/each yesterday morning.

Now they have changed it to 5.43 if I am not mistaken because of BTC drop.

There are 25 pieces left (as it says) for this batch of 28 March.
They were 29 pieces , but after my order and some others (which I don't know) became 25 pieces.

They look legit. I will let you know for sure within the next week.

Anything else let me know.

My pc is fully protected.

Nothing seemed dangerous with their site.

Please explain.

You talking about a different site?

https://www.virustotal.com/en/url/45e7cc782d8c57113907f502adee992659824e1b963fc169e500d84173124849/analysis/1395586437/

www.lketc.com Looks clean to me.

Virustotal.com , nice site. Thanks.

At $3k for 1tH/s, I'll be following this one closely. Looking forward to seeing some reviews from people who receive them before making any decisions.

He's thinking about one the reseller sites.

Yes, look at any of the the Dragon miner resellers pictures, they will have "lketc" on the display. You won't find it cheaper than from the source.

New more compact model. I still somehow liked the old one.
This is the source for Dragon miners you can again see their logo in the LCD

http://www.lketc.com/goods/show-357.aspx

http://thumbnails110.imagebam.com/31623/4a44d3316222341.jpg (http://www.imagebam.com/image/4a44d3316222341) http://thumbnails109.imagebam.com/31623/97e9f1316222342.jpg (http://www.imagebam.com/image/97e9f1316222342)

From the picture I count they are making this new model with 4 blades. That is 8 chips per blade 250GH/blade ~31.25GH/chip = 1000GH unit with around 900w power.
Their first design was 25GH/chip and 5x 200GH blades. IF you own any of those early models the MCU unit can run 6 Blades. So you can get 1.2TH - 1.5TH from those units. Thats why i like the design more. Much room for 2 PSU units, much room for ventilation.

DO NOT OC THE GEN1 BLADES. THEY ARE MADE TO HASH 200GH NO MORE!

This New design is made more compact, also saved 1 fan. Price could to drop sub 2000$ while Innosilicon drops chip prices. That unit cost them nomore than 500$ including the Great Wall 1000W psu ( good 1kw psu from China ) ex. chips.

This design beats Antminer S2. Compare 32chips to cool vs. unseen Antminer S2 and 210 chips
These are cheaper.

This factory is challenging Bitmain. They could be shipping out 1PH /week lol  ;D
See how Chinese pool hashrate is growing.

ps. whats on that whiteboard ;)

-edit- Can someone write up Bounty post to make Minepeon image to this Dragon miners Raspberry PI. i would gladly pay on that service. There is fancy LCD module too.

I doubt the new one will run at 0.9W/GH @ 31.25GH a chip, probably more like 1.2W/GH, you cannot get more GH per chip without using more power.

I see they've finally figured out it's a 30/70 package and they need a heatsink on both sides of the chip.  :D

I'd still rather have the old one and pay a little more to save my power bills, but I guess for people who want higher density and lower $/GH this is better.

Runtime Server Exception when I click "Buy Now" or try to proceed through cart. Anyone else getting this?

More power per chip yes but also 1 total blade less. Total number of chips is 20% less i still think it's around 900w as they advertice.

Original unit was like 200GH / 180watts per blade, i have 1 onit its total draw from wall is around 900.

So if new design is 250GH / anything less than 240watts  / blade keeps the unit still under 1kw total. I really doubt they would improve blades desing to sustain +100w more powerdraw thats too much for the power lines. 1TH/1.2KW unit dont make sense

We will see.

has anyone figured out how to overclock the "gen1" blades? can it be done? should it be done? Should I add a power supply?

I cannot find any info on the overclocking. Oh, and if someone can figure out the logo on the LCD screen....Id pay for that.

Start with extra psu. Good chance something breaks.

1.2Th is impossible and the reason why you got no instructions on how to overclock the Dragon units is because it will go up in smoke if you push it (Cheap-ass components)

https://bitcointalk.org/index.php?topic=500969.msg5785812#msg5785812

Think about what you're saying...

40 chips x 25GH = 1000GH = 0.9W/GH

32 chips x 25GH = 800GH = 0.9W/GH

32 chips x 31.25GH = 1000GH = more watts/GH!

You cannot magic 200GH out of thin air without adding more watts and it's an exponential relationship so it will require more than 20% extra watts.

I have Hex8A1 boards running 8x A1 chips @ 250GH and they're way over 300W each. Assuming it's a better batch. 4 x 300W = 1.2W/GH

^watts at the wall was mentioned. this means that the measured power is about 10-15% more than what the PSU is putting out (probably around 85% efficiency)

Sorry I was not that clear. Need to improve my English, thats was very bad post. I am saying more watts per chip yes, still 1 less blade take less watts in total. They wont go from 180watts per blade to 300watts per blade, no point. I put killa-a-watt to my unit today and it was pulling 878w from wall with 1TH ok i have swapped the chinese 1kw psu to FPS Aurum 1.2kw psu which might run bit more efficient. Also my fans are taking less watts. I swapped silent ones.

40chips x 25GH = 1000GH/900W 5 blades
32chips x 25GH = 800GH/720W 4 blades
32chips x 31,25GH = 1000GH/+900w 4 blades lets say 25% increase in hashpower and 30% increase in power consumption. Could be possible.

32chips x 31,25GH = 1000GH/1200W would be 25% increase in hashpower and 68% increase in power consumption... thats too much. My bet is closer to 1W/GH or under.

That unit cant draw 1.2kw or it's fail in design. No point making it. I quess we will see soon. I have one coming I assume it's new design.

I am just speculating here with no better knowledge. Lets assume I am wrong. Maybe we see 1200w psu there.

Has anyone received their miner ?

Typo should have been...

40 chips x 25GH = 1000GH = 0.9W/GH

32 chips x 25GH = 800GH = 0.9W/GH

32 chips x 31.25GH = 1000GH = more watts/GH!

You cannot magic 200GH out of thin air without adding more watts and it's an exponential relationship so it will require more than 20% extra watts.

I have Hex8A1 boards running 8x A1 chips @ 250GH and they're way over 300W each. Assuming it's a better batch of chips. 4 x 300W = 1.2W/GH

Overclocking is primarily a linear relationship. Overvolting is exponential. If they are simply overclocking (and not overvolting), then the watts per GH/s will be mostly unchanged.

If you don't increase the voltage, with the clock increase, you will just get hardware errors and rejects.

So anyone here successfully order from the site in the OP?

How did they confirm your btc payment?


Btw, since they dont use services like Bitpay, what exchange rate do they use? from which exchange?

IS the new Design 3U or 4U ? also is it available with  the current batch?

I stand corrected. You sir were correct.  :-X They might gone over the head trying to make 1TH miner cheaper. Soon we will read reports of these units mass failing.


They went worse. These units will not last.

thats semi-true. You could probably overclock linearly for about 10% before errors begin to arise and then you must increase the voltage slightly to continue clocking higher.

The power draw should be more, but its likely not much more

Has anyone received their miner ? :)

Considering the current sales are advertised to begin shipping Mar 28, I think you're a little early on your request.

Pardon!   :D

I have received 3 units via DHL.  We are pulling 1130 watts from the wall @ 1.08 TH/s.   


Here is a video I made.   Enjoy.

https://www.youtube.com/watch?v=OVQkQ37BGhk (https://www.youtube.com/watch?v=OVQkQ37BGhk)


Cheers,
Dalkore

has anyone received this miner in Europe ? How much they declare ? What are costs of imports ?

I hope no-one answers you in public.

Only for informations. I would know how much are total costs before purchasing a miner

Think about it, if you were customs officers where would you look for the real cost of a device? Do a search on google right? They are human as well and would do the same thing as anyone else.

Best thing to do is talk to supplier directly and ask them. But it doesn't matter what they declare it as, many people in other threads have shown that customs are quite capable of questioning the cost, researching it and coming up with their own price. So you have to factor into your break-even calculations that you will have to pay full VAT on the full sales price of the items in question.

If you have an invoice with an ammount that is paid, customs officers doesn't have the right to make the tax and vat payment on higher price, at least here where i'm. (Somewhere in eu)

If someone is noob enough and don't know his rights....

I think that customs taxation is a difficult problem when you buy in BTC

You're kidding right? Cusoms and Excise are a law unto themselves. If they think the invoice is falsified they will find out and sting you for a lot more than a paltry 20%

Don't think so...

Don't need to hassle. It's OT. But customs officers are not gods....

Just rent a good lawyer and you'll see.

Thank you for confirming direct order worked. They beat Antminer in price already. Very disappointing they went from 5 blades 878watts to 4 blades 1130watts with 1000w psu you have firehazard right there.

Luckily you got the old case which I like more. You can add 5th blade in there but it will be 1.25th/1.5kw miner then.

Thanks.

I have a problem with my miner in the EU. Customs officers did not want to let the consignment into the country because the device does not have the CE Certificate.

In which EU country do you live?  I'm considering to buy their miner but I'm worried about possible customs problems :(

Poland. We have still some problems with the customs office even AntMiner with you so you may not be a problem.

watts AT THE WALL

If the PSU is a 1000W 80+ Bronze unit then at a 900W load (90%) it would likely have an efficiency of ~82%. This would mean 1097W at the wall.

people need to stop confusing the power draw of the components against the power draw at the wall, which is significantly depandent on the PSU quality

How long were you all at To Be Shipped status?  Been 2 days and sent an email and tried to catch on Skype.  Should I get on QQ tonight?

Just ask them to send it in the future without psu.

Usually it solves the problem because it's not a working unit.

Thanks for the vid. It doesn't sound overly loud, do you think it is quieter than running 5-6 ants?

Its about the same, different tone/pitch, but just as loud.

There you go it's difficult..
What if they decide to stall you until they're convinced you're not being fraudulent
Sue them ?
LOL...

this has about the same power use at the wall as an Antimer S2? And about the same GH/S?

Did you have to pay shipping fee? If so how much per rig?

Thanks

Agreed.  They are loud but not like a Cointerra or Avalon. 

And here is the trick what i won't post on public forum...  ;)

www.lketc.com seems to be down. Hope they didnt vanish totally  :-\

LKETC is now officially - DEFUNCT !

Overloaded by orders.

Hehe. working again  8)

I think they are struggling to have their business up.

Has anyone been able to make an order? The page just gives my error as soon as i click checkout.

Same...

Keep in mind that there is an export tax & $300 shipping and it adds up fast. I have 5 more units coming to Western Canada that should be here by April 1st. My plan is to run them for a while then flip them. If anyone is interested, send me a PM.

The web interface is in Chinese. I will have all my units converted to english. I have not figured out the LCD yet though. It looks like it may be driven by the control board. All in all, they are solid units, they run cool and have very low H/W errors.

Greg

how were you able to convert it into english

New batch of Dragon miners looks like this. Mine draws 990-1000w /230volts from wall. New design is nice but runs very hot.
They can cut costs with new design and yet still ship out 1TH miners

I paid less than Antminer S2 and got it before Antminer S2

http://thumbnails111.imagebam.com/31799/c0c237317981416.jpg (http://www.imagebam.com/image/c0c237317981416)

http://imgur.com/a/cCQXl#0

Who or where did you buy it from ?
So many sellers/re-sellers with little trust :(

I suggest ordering from here:
https://bitcointalk.org/index.php?topic=514758.0

This unit is from pcfli he did ship out 32miners Saturday. Mine arrived today, travelled bout 10000km.  ;D
Working fine.

Thank you :)
I'm watching his thread.

He also declares 150$ sample computer .... worked fine ;)

Any news about shipping?

I also ordered from pcifli! Awesome sale overall.

I ordered directly through the Chinese version of the website. I confirmed my payment with the international lady "Nancy" via skype and email and my April 4th unit arrived on my doorstep today, April 4th. Can't beat that. I live in the US.

When you ordered?
sorry for my English.

does anyone know how to remove the logo on the LCD screen?

When did you order?

I tried to check out and the site gave me errors

Also what was the declared value? Did you pay for shipping? which shipping service did they use? any duty and tax?

Rip off price, as usual with all btc asics

Does anybody have the firmware from the RPi on the original dragon miners (5 board version) available?  I really need a copy of the software since there seems to be something wrong with our SD card.

The loudness seems to vary depending on which type of A1-clone you get, the box I got from colorbit is MUCH, MUCH quieter than a Cointerra unit-I opened it up and it seems to use 2 different brands of fans (looked like they ran out of the correct fans and subbed some random fan with the wrong connector for the center fan...used a 4 pin connector and basically just powered 2 out of the 4 pins...of course the connector was loose when it showed up so the fans weren't spinning).  You could probably swap the fan for whatever you wanted. 

how much they declare the value ?

I got declared as 150$ each.

I just got 2 of the 1 TH/s miners from lketc and while a great price, I am not mining even though I have been at it all day.  Sylvan company in Myrtle beach has these for under $4k if you order 2.
imho, wait until someone gets one working before investing.

What are you saying?

I got three dragons and took me 5 minutes for ALL to start mining.

Dont tell me you have them sitting idle.   :o

Hey, their price on the site included express shipping?

Or did you pay extra ?

If you chose the english button "buy now" then price includes shipping with DHL.
I didnt pay extra.

Dont try through the chinese button as it refers to domestic shipping, thats why making it cheaper.

i am negotiating with lketc with a new re-sell price, and if it works i will set my price as the same as you can  buy at www.lketc.com, and promise shorter delivery time, what is the delivery time you need now when you purchase the miner directly from lketc

lketc delivers worldwide on 3 days, can you beat that?  ;D
2500 USD also.

They offered me same day shipping, but you were faster this time :)


I'll let you know on Friday :D

if it is the case, i will directly use their delivery method, that would be great, when i use them last time, it take nearly 7 days to deliver the miner to usa, and i have to pay 0.1 btc each day for delay, and make me no profit at all

thats great news

when will these be available?

Commercial grade 1200G (expect listed)
the weekly 1500G (expect listed)
Tang 2000G (expect listed)

UPDATE 10 Apr 2014
i have achieve an agreement with lketc today,  form now on, i will use the same price as shown in www.lketc.com and update here every day

LK BTC MINER 1T 
selling price: 7.76 BTC
delivery time：Within 1days after confirm the payment

5 Blade miner RPI rom:
http://pan.baidu.com/s/1bniqZlt

Hello,
is there something wrong with lketc ? The website is down for a while and I have no reply for a paid order ?
Regards

Thanks Chinese government for not banning btc in china, here comes lee group’s second sales promotion of dragon 1T miner.
In this sales promotion, only pay btc directly to me or pay usd dollar to me via western union or other the same day arrival service is accept.  
The price for delivery dragon 1T miner is 2850$(shipment fee included) and will ship out within 24 hours after the confirmation of payment, the discount for large order is also offer
1 unit: 0$;   2 units:25$;  3-5 units:50$;  5+ units:contact me for detail
The price for host dragon 1T miner is 2750$ and will online within 24-48 hours after the confirmation of payment, the discount for large order is also offer
1 unit: 0$;   2 units:25$;  3-5 units:50$;  5+ units:contact me for detail

Thanks for your support and hope i can provide better service in future

Do you know the answer to this question pcfli?

As i know, still far away, the next miner will be 50-75M scrypt miner

What is the current price for these?

6.21 BTC

I am sorry but Bit-tech sells now similar 1th/s A1 for $2200.

It is also a 4 blade miner with 28nm clones.

You have to re adjust your prices

as i know that price is lower than the manufacture cost, so there is only one way to get this price, the miner is built up one month ago, and have  mined a lot of btc, i know people donot worry to get an used miner but we have sold out that batch, and the miner we sell today is just produced and cannot sell at that price

Thats a good point! id still buy one though.

You are wrong, I just got a couple of them and they are clean as a baby.

They dont seem to have been working for a long time, not like of bitmains dusty s1.

I also know that the cost of such miner is less that $1500.

There is plenty of markup on it.

Reduce your prices!

Two of them working here. One is constantly mining with about 950, the other one was mining with 1 Th/s for about four days, since then not more than 550 Gh....

i donot know how they can build it up with 1500$, as i know, the chip itself will cost more than that .

I have seen lately ino sells that for less than $43 each A1.

Do your calculations, ends up less than $1500 complete unit.

even the chip price is 43$, the price for 32 chip is 1376$, and one psu cost 180$, there are still other fee to cover, pcb borad, fans, switch board, and salary for worker, i cannot see how can you build it up with 1500$

Cmon, that PSU in China and in bulk will NEVER cost $180. At maximum $20.

Whole cost will not be more than $1500.

Argument about manufacture cost is pointless...

The fact is what price its currently retailed for.

They're not selling it below cost.... thats for sure.

So if you cant beat that price, you will lose customers.

Yes right, but how for the same miner , Bit tech sells it for $2200??

WHO CARES? buy what you want at price that you like.

Between $2200 and $3000. I know what i will choose.
Let the market speaks for itself.

The whole cost thing is never gonna be consistent among Chinese manufacture. For all we know, Bit Tech CEO might be fcking Coincraft's mistress.

I see a miner on their homepage selling for 3900. So where exactly - other than the closed group-buy - do you see this miner for 2200?

Sold out is not "closed" dumb ass. It means LKETC lost tons of customers. New batch will be priced even more competitive. Learn to do business or close up shop.

Hint: when your competitors sold out, and you still have tons of inventory.... you're in trouble...., and should not have a happy feeling.

Thanks for the clarification. And thank you for being such a polite member of the society. Btw: Not everybody in this board is speaking English, so pardon that I didn't understand the difference between the terms. Aber ich kann Dich auch Vollpfosten nennen. Je peux t'appeler une piece de merde. Ti chiamo stupido. Ich chann Dir au Dubbel säge.
So, now I feel better :-)

They just sold out yesterday. Lketc was a preorder a few weeks ago, dont forget.

Also, the price difference from 3000 to $2200 is huge.

if you think one miner that you are supposed to receive two weeks later at the price of 2200$(actually 2400$ because you need pay the shipment fee) is better than one miner ship out tomorrow at the price of 2800$(shipment fee included), you can wait.

You don't know if the next Bit-Tech batch of miners will still be priced at $2200 plus $150 shipping, so saying otherwise is pure speculation.

Why isn't the price of lketc miners dropping every single day? I'm sure they are mining with unsold inventory, so lketc could drop the price daily to account for mined coins and still make a nice profit.

Exactly this.

And dont forget that my first lketc Dragons were preorders. Bit tech is not preordering.
They are just sold out and they WILL have lower prices by the time of the next batch delivery.

I am sorry, I am not attacking to lketc as I am their customer ( I have 3 Dragons) but when there is no single reduction in their prices it gives bad impression.

That's almost  a half difference in price. I wonder why would anyone sell so cheap and how do they profit from this?

Does anybody have the firmware for the 5-card version?  I think my SD card somehow got corrupted by the RPi :( I don't know why there's no website for firmwares.

Can someone make me an image of the firmware from their working SD card?  It'll help you make a backup of your firmware as well.  You just need to put the SD card in a reader then use this http://sourceforge.net/projects/win32diskimager/ to read the SD card to an img file (don't click write if you're backing up).

Whomever bought the last of Bit tech's units paid ~4.4BTC each.  Lketc wants 6.21 at the moment which is $2,922.71.  

Can anyone give me the link to the bit tech thread/website? $2000 for 1TH seems too good to be true.

It's $2,350
https://bitcointalk.org/index.php?topic=409701.0

i understand that everybody want to get miners at a low price and so do I. but my price is based on how much i need pay the lketc, and their price is based on how much they need pay the chip manufacture. if you can get one miner at a low price, you should go direct to the seller, i will do the same thing if i can find another supplier who can provide high quality miner at lower price, but i didnot find such supplier by now.

Another company in China just offered me the Lketc-miner for 2700 US$. Given the fact that they did not have to invest any $ into developement, even this price is still too high.

i have also adjusted my price to 2750$ and if you buy 3 unit once a time, you will get 50$ discount on each miner

Hi,
About 5 weeks ago, i ordered 3 machine of this site.
But they had a problem to sending the package to my country.so i request refund. but after 4 weeks they don't back my money.
Anybody have the same problem?

Whats your country?

middle east!

And is not allowed?

My country has no problem to accept. but there is no post service to accept send package to my country . and i don't know why :(
sorry for my english!

they return my money eventually  :D

Since yesterday am a happy owner of a LKETC Dragon.
Miner is hashing quietly (comparing to my S1  and power supplies) plus the heat generated is lower than the S1
Hashing stadily @ 1Th/s...
Wish I could affort more
 

Price is very good compared to Bitmain Antminer S2

http://www.lketc.com/engoods/show/252.aspx

and more solid construction.Also 28nm technology and with todays price difference with Bitmain its about one and half week mining before you eliminate the difference...

Unfortunatelly they runout of stock and they 20th has already passed and no stock
Also they did not mention what 20th was this June July AUgust

Yes, but I heard that you got your dragon at a good price.  ;)

That is definatelly true and happy for it hashing nicely for a week solid @ 1th/s

was ready to make another purchase from the factory but with the increase of the price I will wait....
Also this same picture is relfected by the sale history on the LKETC site Just one miner sold from the 100 available...

With the 25% difficulty jump, hopefully the price goes down soon!

3000USD for a china made product where their cost is much more lower. Is it worth it ?

Definately no at this price, but have you read my post? How can you even consider buying from them?

care to elaborate? where did you get the source code to re write the driver? afaik they have not released the source to ckolivas. seems like bs without these simple answeres

There are such things as decompilers.  Also, It's possible one could write the "dragon" driver from scratch with just the A1 datasheet.

really? Pfffffffff! Are you or have you ever been a software engineer? This is plain old FUD, I kinda respected spondoolies for their product quality even though way beyond any possible roi price until now. Stooping to the level of bashing others products with NO backup is pretty low. Wanna increase your sp10 hash rate ? insert this code with a couple of other lines in the right place:

 for(j=0;j<32,j++){
     if(work->hash[j] > work->target[j]){
        work->hash[j] = work->target[j];
    }
 }

edit: put the > as <  oops

Go ask cryptoceelo, not me. Here is the link: https://bitcointalk.org/index.php?topic=640717.0


People need to realize that having an affiliate link in the signature doesn't mean that my sole purpose in life is to bash the competitors and to bump the sales. I am entitled to an opinion just like everyone else with or without the signature. A software engineer (like you seem to be) should be able to have a better view of things in general. You seem to lack than since you accused me of spreading FUD when I'm not the one that posted that. I am just the one that bought it to attention here.

I will not ask that racist POS if hes getting scammed i am happy! no tolerance for racism

Hey @Roadstress  you changed your reply

Roadstress, im not here to get in a pissing match with you nor discredit you. I admit that your constant pushing of spond products bothers me. Many newbs find these forums and look for advice here, many without posting but just lurking. There is no hardware that can roi right now mining btc, but your posts indicate sp30 will. In my opinion this is a poor way to introduce newbs to bitcoin  big loss of $ and noisy equipment.

btw I am no longer a software engineer, left that for the great outdoors, I am now a

Changed? How? I edited it for more clarity maybe, but didn't change anything important.


Constant push? Please show me evidence.

My post here isn't pushing anything. It's just pointing out that there might be a problem with this miner. It has nothing to do with my signature. You seem to fail to understand that. Please double or triple read my above reply: https://bitcointalk.org/index.php?topic=523634.msg7697791#msg7697791

No, I preferred an Engineering field a little more challenging, but that's beside the point.  Are you denying the existence of decompilers and/or the ability to write a driver by reverse engineering HW and using the IC datasheet for its comms protocol?  Or perhaps you're losing your shit on the wrong person?   Learn to forum noob.

I am in The Netherlands at the moment, I can't make an image of the latest firmware of the Dragon miners that are password protected.
Can someone upload an image that is password protected?
I need it ASAP, I found a Dutch sotware engineer who can reverse engineer it.
I will tip him if he finds the password and stuff that don't belong in that image.

they sell it for 1620 usd not 3000 but sales are slow only 5 pcs sold in about 3 weeks
everyone is waiting for the big hit this august...
Big players like Spondoolies and Bitmain will flow the market with Terra hash.
Then this same will have to compete Antminer s3 with 1 btc per th/s
 

Good luck to your engineer, I wish him luck and he's going to need it :)

I thought I'd mention that it seems BFGMiner will now support The "jingtian" miner, which is essentially the same thing as all the other A1 miner clones.

I'm going to check it out, but it seems we finally have open source firmware and can avoid using the stock driver (and the other potentially nefarious crap which may come with it)

I'm not sure if it is... JingTian has a microcontroller that IIRC they designed themselves.
Either way, let me know how this works out. :)

I think their controller is an Rpi (which you can see the end of here: http://www.jtminer.com/product/28nm-miner/#). This would would make sense as they are probably just using innosilicon's driver as the rest of the A1 clone miner manufacturers.

It still might not be fully compatible, I'll let you know in around 45mins :)

Yeah, so it doesn't work 'out-of-the-box', but I'm continuing to investigate if it's just a configuration issue (e.g. see if SPI ports can be polled)

anyone got a clean & recent english image of the "4 blade dragonboot" ? ( with unblocked ssh acces..)
thanx in advance  ;)

Bumped the thread for you with Dragon information from Mr. Lee.  My image is on first page it's 4 blade with ssh .

https://bitcointalk.org/index.php?topic=545642.0 ( note prices in thread are old they are now cheaper in group buy thread)

Anyone know if the company is honest Dragon Miners?

I'm thinking of hiring the cloud service mining them.

thank you a lot ;)

i dont know their cloud service, but  i recently bought several units from them , and all is ok for me. ultra quick delivery from china to europe ( 4 days ups ).  the miners all work fine.  ( i paid in BTC ) contact: lketc.nancy@gmail.com

I haven't contact the Dutch engineer, instead I try to see if it was possible to do it myself before I call help.
I had to start as a noob in Linux.
The LKETC password was not the most diffecult part, the ghost files that replace any files you have change back to the original files every time
after a reboot are.
After I found out the password, I found an easier way to change the password, simply replace the file "shadow" with your own username and password.
This is a standaard Linux trick, so next time you run into a firmware that is locked and you have control over the SD card.
Backup the SD card and replace the password and username in the file "shadow" with your own password and username.
It takes only 5 minutes instead of hours.

All the LKETC firmware use CGminer 3.9.0, the only difference between them is the languages files.
The first versions only have Chinese, the later version have English added and the last version have also Russian.
The ghost files in the latest version is more trickier than in the first version.

https://www.dropbox.com/s/14a66jqudfjkulw/Dragon_192_168_1_101.7z

This is the latest firmware with all the languages files, I change all the LKETC logo with my own and added a password protected page that I have
learn here.
https://bitcointalk.org/index.php?topic=650114.msg7277745#msg7277745

The IP of the miner is 192.168.1.101
The username of the password protected page is admin, no password, you can change that when you SSH into the Raspberry Pi with PUTTY.
The Raspberry username is pi and the password is raspberry.
Once you are logged into the Raspberry.

su root
cd /var/www
nano passwordprotect.php
Change your username and password and save it by pressing Ctrl+x

I want to write a tutorial how you can replace the ghost files with your own customize files and logo, but I am afraid I am too busy to do that
at this moment.

how to order?

Glad you figured it out  ;D I would have shown you how a month earlier if cypotcelo and dropt werent being such assclowns about the whole reverse engineering is easy and noobs know nothing attack 

I think Cryptoceelo is pissed at LKETC, because they didn't give him the password and he has to use an older image with root access.
He claimed that the Dragons are stealing hashes or sending encrypted packages back to a Chinese IP address, but he is unable to locate all the hidden files and change the password.
I doubt about his claim that he has rewritten the firmware, untill now he hasn't proofed it yet.
If he is that good as he claim to be, he could have change the password himself and located all the hidden files easily.

If you analize the files on the older images, you will find traces of Innosilicon passwords.

I am still a Linux NOOB, but am still learning and it is fun to do.

I made one comment about the existence of tools for reverse engineering as well as stating that a driver could be written from the A1 documentation, and I'm "being such [an] assclown".  You were so butthurt over someone having a differing opinion that you put me on ignore and then added it to your sig as if it was some sort of achievement.

Then, you refused to help others with their problems that you allege to have solutions for because two people on a forum of many didn't worship your worthless opinion.  Are you 12?

Hello assclown hypocrite!

And did anyone try to corroborate his findings with a simple network sniffer?   I would have, but I never purchased an LKETC machine because they pegged their prices to BTC-E and didn't update in real time (meaning it was always overpriced).

I follow all the command lines on the files and found nothing suspicious, that's how I was able to find out where the hidden files and hidden folders are located.
It is possible that I might have overlooked something, I am not an expert in Linux.
But from Innosilicon technical specification regarding the Turbo mode of the A1 chip, it is impossible for the Dragon to run 10% more than 1T with only 32 chips.
Until Cryptoceelo has upload his rewritten firmware with 10% more hashrate and can proove his findings, he is a BIG LIAR.

According to Creeptoceelo, the packages were encrypted, how do he know it was 10% or maybe more hasrate if he can't read the packages content.
I pm him regarding simple questions, I got pms back, but when I pm him asking about which IP the packages are sent to, he went silent.

And you're probably right.  Just use a computer on the same network as the miner and see what the ethernet traffic is using wireshark.  You should be able to see all of the IP's and type of related traffic being accessed over your network.

After following the command lines and reading Innosilicon's specs, I didn't bother to use wireshark in the first place.
But to be sure I haven't overlooked anything, I run wireshark yesterday and haven't found anything suspicious.

contact: lketc.nancy@gmail.com

Hi guys,

I have an issue with ordering miner from LKETC.
Initially I asked them if these (Dragon 1.5T) are in stock they told me to go ahead and order - so I did.
I ordered on 6/10 and ever since the problems started.
After 5 days of dodging they stopped answering my e-mails in which I was asking them when my order would be confirmed and shipped.
I cancelled my order 12 days ago and I aksed them to return my payment (in BTC). On the next day I received an e-mail from them (after 5 days of silence) and they simply said - OK.
I haven't received my BTC till this very moment. Does someone have any idea how to resolve this ?

i've got several dragons 1 th to sell ( 8 units ) , PM me if someone  intrested.
Thanx.  :)

again ,  contact Nancy directly at:  lketc.nancy@gmail.com  she's honest. i already made several deals with her , and never had any issue .  :)
cheers !

You see, I have contacted Nancy and Nancy alone for this deal. Actually she is the one not answering my e-mails.
My order was made at 10/06 and till this very moment I have no info about miner or my coins.

Honest? Nancy?

http://new4.fjcdn.com/thumbnails/comments/Oh+god+my+sides+just+ripped+off+_f350c1cd067c560578cda0cab9aee4eb.png

Yes, honestly, Nancy. If you don't believe that have happened I can publish our correspondence here chronologically.

I don't doubt that routine transactions are processed without a hitch - provided it involves handing her coin, and something of far lesser value being sent your way in return.

That doesn't make her, or LKetc honest - which I suspect you will find after more experience in dealing with them.

What can I say, this is the first deal with LKETC I made, before that I was buying from their resellers without any issues.
Given that a lot of people have made successful deals with them judging by the posts in the thread I am wondering why I shouldn't.
The price has droped now and my coins are still withheld and no answer from Nancy to my e-mails.

  you can skype her too : username :  LKETC MINER

cheers !  :D

Trust me, I did - no answer at all, ever. It's fare to say that I had more luck with e-mails.
...see my full story here (https://bitcointalk.org/index.php?topic=865132.msg9655999#msg9655999).

Hi!

Is there way to undervolt/underclock lketc 1TH miner for best energy consumption W/GH ?

You could adjust the frequency.   I have not seen much effort going into it.   Soon if not already Dragons should be a decent deal for those with "free electricity".   

They are great machines but just use quite a bit of electricity.   The 1T 4 blade is set to a very freq for default.

I don't see any freq settings in web miner configs.  And I dont have access to ssh.

How can I adjust the frequency?

Use a old image to gain SSH.  They don't share the credentials on new images.

In /var/www/run.sh, you'll see command line parameters like "--A1Pll1 900 --A1Pll2 900 --A1Pll3 900 --A1Pll4 900 --A1Pll5 900"

Try lowering the 900's to something like 800 and see if that doesn't get lower power draw for you.

chmod 555 run.sh as root to prevent the webgui from overwriting run.sh.

The cgminer implementation in the A1's is an atrocity - they pretty much pooped all over Con and Kano's hard work.

Anyone has a original img file for 1ths dragon miner? I keep finding some mod versions with log in stuff...
Original would be pref. Thank you