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USB Antminer U1

Some new gadgets, USB Antminer U1 SHA-256 Miner @ 1.6 to 2.6 GHS (with OC). These are not supported yet by the standard miningsoftware, used a modified cgminer, you can get it here: https://github.com/AntMiner/AntGen1. I put 5 Antminers in a Rosewill 10port Hub, put a 12x12cm Fan in front of it and fired it up. Tested some settings to get the best performance:

./cgminer --bmsc-options 115200:20 --bmsc-freq 0781 -o YOUR POOL URL -u WORKERNAME -p WORKER PASSWORD

with these setting you get stock hashrate of 1600MHs

./cgminer --bmsc-options 115200:20 --bmsc-freq 0881 -o YOUR POOL URL -u WORKERNAME -p WORKER PASSWORD

with these setting you get stock hashrate of 1600 to 1800MHs

./cgminer --bmsc-options 115200:20 --bmsc-freq 0981 -o YOUR POOL URL -u WORKERNAME -p WORKER PASSWORD

with these setting you get stock hashrate of 2000MHs. One strange thing with options 1 Antminer gets very much HW-error, the other 4 work fine.

Please be aware when you overclock them warranty will void (terms of us from the manufacturer) and you always should use proper cooling. The standard factory setting is bmsc-freq 0781.

Some screenshots:

Antminer -bmsc-freq 0971

Antminer -bmsc-freq 0971

Antminer -bmsc-freq 0871

Antminer -bmsc-freq 0871

The USB stick uses 5V 0.5A. Next week more tests.

USB Antminer U1 5V 0.5A

USB Antminer U1 5V 0.5A

USB Antminer U1 5V 0.5A

USB Antminer U1 5V 0.5A

5 USB Antminer U1 + Rosewill 10port Hub + Fan

5 USB Antminer U1 + Rosewill 10port Hub + Fan

Update 2014/01/19: I small update on the performance of the Antminer U1. 5 units have been mining from January 6th 2014 until now (January 19th) at miningpool ppcoin.d7.lt In the charts you see some dips but that’s because I turned off and on some devices to configure them an other way or on other hub, etc.

cgminer3.8.5 with 5 Antminer U1 Antminers PPC at d7.lt
As you can see on the cgminer screenshot 1 Antminer has extreme high Hardware Errors, I don’t know why… and the strange thing is it performs rather well, only 30% less than the other 4. Some day I have to find out why 1 Antminer is “bad”.


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  1. I see you use ubuntu but when I go to use the cgminer for linux it not a tar. is it missing an extension?

  2. Sooo.. are these usb sticks for bitcoin only? or can we mine litecoin/altcoins with it?

  3. Very helpful – thanks! Just acquired 3 U1s and this will help me get started on my netbook running Ubuntu 12.10

  4. Another question: I encountered some conflicting/confusing advice on http://bitcoinrigs.org/instructions/antminer-u1/

    They claim that you need a CP2102 driver and Zadig installed before you can install cgminer. I plan to use only ubuntu or centos 6+ Linux installations so do I need these extra steps?

    • That is for Windows, you don’t need it for Linux.

    • maybe you need to install some libraries to get cgminer working:
      sudo apt-get update
      sudo apt-get upgrade
      sudo apt-get install autoconf yasm pkg-config make libusb-1.0-0-dev libusb-1.0-0 libcurl4-openssl-dev libncurses5-dev libudev-dev

      • yep. thanks fellows. Got it built and running on Ubuntu 12.10 /Acer-1 D257 (netbook).
        I’ll update you on the performance.

  5. Just got into BTC mining and have (1) Antminer setup as test bed. Would you mind letting me know off line how many BTC /day /week /month you are getting?

  6. hey i set up one antminer and it worked perfect, but how do i set up another one to put in the hub. it fails to initailize the second one.

    • which minersoftware do you use? Try BFGminer 3.10.0, start the miner and plug in the Antminer 1 by 1. You USB Hub should also be powered, the Antminer draws about 0.35A to 0.4A. I am not that into Windows, if you have Windows you better check Zadig drivers.

  7. Yo man, I used the command line:
    cgminer –bmsc-options 115200:20 –bmsc-freq 0781 -o YOUR POOL URL -u WORKERNAME -p WORKER PASSWORD
    and it gave me fatal eror and the minning whouldn’t start..I also used the other lines as well. And besides that I’m using 2 antminers and they both give me a total of around 1GH/S together.
    Any ideas what should I do?

    • I assume you use Linux, maybe you don’t have root right to cgminer, it’s libs or usb, try it with SUDO and you have to use double – for the bmsc parameters

      sudo ./cgminer –-bmsc-options 115200:20 –-bmsc-freq 0781 -o YOUR POOL URL -u WORKERNAME -p WORKER PASSWORD

      if you have Windows, I don’t know what causes the error…

  8. I am new to this. I just purchased 1 Antminer and I am having problems. Windows 7 cgminer and I use Btcguild. Can you help me out?

  9. I have the rosewill hub as well and up until a week or so ago, i was mining using Block Eruptors. I sold them for antminers and everything is going quite well. I remember seeing a post about the amount of Block Eruptors you can put into that hub and there was a formula for figuring that out: output of power supply of hub; volts x amps = Va / 2.5 (watts of BEs = number of BEs to put in hub minus 1 for safety sakes. It came out to 7 safely in the hub. Since antminers are rated at 2 watts, in theory, using the same calculations, could you but 9 antminers in the Rosewill? 5v x 4a = 20Va / 2w = 10 antminers minus 1 for safety?


    • An Antminer with setting 0981 @ ± 2Ghs draws 0.35 A . The Rosewill has a 4A powersupply, so 4A devided by 0.35A = 11.42. So the hub should be able to feed 10 Antminers enough V / A. I should test 10 Antminers, measure A or W and feel if the Antminers and/or cable/powersupply get hot. If they get hot, use only 9, just to be safe.

  10. Hi,
    I just bought 2 Antminer on Amazon and I am preparing a small laptop to get them running as soon as they arrive.
    I have a few questions, if you don’t mind:
    1) how many BTC did you manage to mine in 2 weeks (just to get a reference).
    2) Why using the USB adapter? I was thinking of plugging them in directly in the laptop (at least till I decide to go beyond 2)
    3) How did you pick the pool?
    Thanks in advance.

    • 1) BTC I don’t know, I mine PPC with the Antminers. You can do a BTC calculation at: http://thegenesisblock.com/mining/a/36eb91fb28
      2) Use USB Hub for enough power. But at long the Antminer doesn’t draw above 0.5A you can use USB port on your laptop. If it doesn’t work right, use an USB Hub with a good power adapter 3A or higher.
      3) check this page: https://en.bitcoin.it/wiki/Comparison_of_mining_pools

      • FYI: I have been mining BTC with 1 U1 miner for over one month now.
        I have mined 0.0071 BTC, or 4~5usd.
        I’d say it is pretty safe to say that mining BTC with the U1 is not profitable (@ ~65usd cost).
        I’ll need to keep going at this rate for over one year, ignoring electricity cost and the difficulty increase. Pity.

  11. Thanks. I saw the pool comparison on wiki (and reference on a previous post of yours). It just did not seem obvious how to see advantages and disadvantages.

  12. Thank you. 2 Antminer setup and working at my USB Port. Ubuntu/bfgminer 3.10, it is really easy, no driver install needed. sudo bfgminer -S antminer:all –set-device antminer:clock=x0781 -o … -u … -p …

    In the picture above, I see you attached a FAN to the overclocked miners. Do you think it is cooling enough at 2GHZ? I plan to setup similar.

  13. Thank you and UNIX is UNIX thank God for this link.
    Are there performance tools for cgminer?

  14. how do they compare to the 280x in terms of performances

    • Hard to compare Scrypt with SHA-256 with very different hashrates… Mining Bitcoin less profit but less powerconsumption. Scrypt (Litecoin) more profit but exhangerate LTC s*cks at the moment, more power consumption 2x R9 280 = 700 W !

  15. This is a really good tip especially to those
    fresh to the blogosphere. Short but very accurate information… Many thanks for sharing this one.
    A must read article!

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