Product Reviews

Gridseed Mini ASIC Miner Review and Giveaway

James Bruce 09-05-2014

ASICs are game-changers in the world of crypto-currencies: the once GPU-intensive and power inefficient task of running a blockchain can now be handed over to Scrypt ASICs which use 1/20th of the power. A few months ago, most people refused to believe these things even existed – now I have two in my hands, one of which we’ll be giving away to a lucky reader. Are these the money-making machines we want them to be be?


The Gridseed Mini ASIC Miner is available for $160 with power supply and free shipping. It’s a small, 5-chip device, but if you pay $1000, you’ll get the more powerful Gridseed Blade with 80 ASIC chips. Also on the horizon is The Fury from GAWMiners, which promises 1MH/s of Scrypt miningg at only $219 – it’s due for launch in June, but given that the site only has 3D renders and has until now just been a distributor, it’s possible it’s vaporware.

What’s An ASIC?

ASIC stands for Application Specific Integrated Circuit, which means a chip which has been designed to do one specific thing only – and is therefore faster or more efficient at doing it. A computer, on the other hand, is a generic device that can be programmed to do anything given the right instructions, but uses more power to do so. The Gridseed ASIC is adept at the hashing calculations required to secure a cryptocurrency blockchain (either Bitcoin or Scrypt based), but it can’t do anything else. Typically, ASICs can be used only for one or the other type of cryptocurrency, but Gridseed is unique in that it can hash both Bitcoin and Scrypt coins simultanously.

Hashing speeds are currently measured in Megahashes Per Second (for Bitcoin) and Kilohashes Per Second (for Scrypt coins), though as more powerful hardware is released we’ll no doubt see the term Terahashes used too. The naming follows computer convention, so 1 MH/s = 1,000 kH/s. A common point of confusion surrounds speeds when applied to Bitcoin vs Scrypt coins – the speeds you see you when hashing Bitcoin are 1,000 times greater than those for Scrypt coins as the calculation is computationally more difficult. Many first time miners will fire up the software without configuring it to mine using the Scrypt algorithm, and are confused when they see much greater numbers than everyone else reports.

First Impressions

The Gridseed ASIC miner arrived with USB cable and power supply packaged separately, in a simple white box with foam holding the Gridseed safely during transit.

gridseed asic -2


Loosely speaking, from a technology porn perspective, the Gridseed is gorgeous – a huge copper heat sink sandwiches the 5 chips discreetly inside. A single demure red and green LED provides activity feedback, though there’s no indication what each one actually means. A few sources suggest the green LED lights up when 5V is connected, while the red LED indicates hashing. Either way, this is some seriously sexy hardware.

gridseed asic -7

I’ve shown it above with the heat sink facing up for illustration only – in fact, the fan should be placed on the top during operation, as it sucks in air and blows it over the copper for cooling. The fan is far more powerful than it needs to be – there’s no danger of the Gridseed overheating, and they can be comfortably overclocked from the standard 700MHz to 900MHz, resulting in very few hardware errors at a tidy 380KHs. Some users have even removed the fan completely, then stacked a tower of ten Gridseeds cooled by just a single fan.

gridseed asic -5


Mining Modes

As its “dualminer” name suggests, the Gridseed can mine both Bitcoin and Litecoin simultaneously; or it can mine one, or the other.

In BTC-only mode, the unit works at up to 10GH/s, which is similar to the Butterfly Labs 10GH/s model ($249) [Broken URL Removed], but at a slightly lower price point. In dual crypto-currency mode, power consumption goes up to 60W, but BTC mining rate goes down to 8GH/s, in addition to Scrypt-mining just less than 300KH/s.

The best way to run them is in LTC/Scrypt-only mode, where they can be overclocked to achieve 360-380KH/s while using just 8-10W of power. Compared to a mid-range video card which will achieve roughly the same hash rate, but use around 200w power, you will realise that the Gridseed chips are up to 20 times more efficient.

Controller Required

There is zero documentation – no quick start guide, no software, no links to driver packages to download. Everything you do with these ASIC miners will be based on forums and blog posts – the best site I’ve found for tutorials on is Crypto Mining Blog – and a certain level of technical ability is assumed. If you don’t know how to burn an SD card image, or create a batch file in Windows – these devices probably aren’t for you. They are very much not plug and play.


Although the Gridseed devices will take care of the grunt work, a controller of some form is still required to fetch and distribute work units. You can, of course, use a computer (guide), but this somewhat diminishes the power efficiency; or you can buy a separate dedicated hardware controller, able to manage up to 50 Gridseed units.


I’ve chosen to use a Raspberry Pi with a pre-built SD card image called Scripta – simply add network connectivity, and powered USB hub. Scripta is self-contained with its own web interface for modifying settings and adding your own pools; no local configuration is required so you needn’t plug in a mouse or monitor. With a network switch, the Raspberry Pi itself, a USB hub and two GridSeed units, my power consumption was still only 26W in total – and each Raspberry Pi can reliably handle up to 10 Gridseed miners at once.

gridseed asic total power


Realistic Profits

Discussing ROI (Return On Investment, the point at which you break even with consideration to the hardware investment versus profit) is somewhat pointless due to a number of factors at play, not limited to:

  • Proliferation of better ASICs – as I mentioned, there’s always more efficient ASICs promised next month, but they may not actually exist or may not be delivered on time. Better ASICs will undoubtedly arrive, but the question is when? There’s also a conspiracy theory that ASICs are only ever shipped once the ROI becomes impossible: if you created money-making machines, wouldn’t you simply keep them for yourself (then sell them)?
  • Coin value – are you going to stick to one particular coin, or join a profit-switching multipool? You may want to auto-trade everything for Bitcoins, and if the value of Bitcoin rises… well, you get the idea.
  • Electricity costs – in my locality, electricity is $0.24/KWh – yours may be more like 10 cents.

The most profitable way to run one of these is in Scrypt-only mode, but even then, if you were, for instance, to focus only on Dogecoin Dogecoin: How A Meme Became the 3rd Largest Digital Coin Read More , you’re only looking at about 50 cents per day (or 1,000 Dogecoins) thanks to currently low prices and high difficultly. Using this Dogecoin calculator, with worst case scenario, ROI is essentially impossible. Best case scenario – the value of the coins increasing 10-fold, ROI would be in about a month. A popular profit-switching pool, which mines the most profitable Scrypt coin and immediately trades them for Bitcoins, is at the time of writing estimating 0.00357 BTC per day per MH/s, which would work at to around 0.00128 BTC per day for each Gridseed device. It all depends on whether you want to hold a specific coin because you believe in it (to the moon, fellow Shibes!), or think that ultimately Bitcoins will rocket in value yet again.

gridseed asic -4

Is It Worth It?

Mining is a gamble at this point. ASICs are required to harden a network, and if the altcoins experience the same growth that Bitcoin has, we’ll all be laughing our way to mansions and diamond encrusted unicorns this time next year. In reality, we might be able to trade-up to a second hand Ford Mondeo. If you’re only interested in the financials, then purchasing and holding your coin is the best option; if you’re a geek who wants to get in on the action and be a part of something amazing, a Scrypt ASIC is an interesting prospect – just don’t lie to yourself about the millions to be made.

MakeUseOf recommends: Buying one is a gamble. Once eclipsed by bigger and better models, they’ll be worthless – at least a graphics card is good for gaming.

How do I win the Gridseed ASIC Miner?

You may enter by submitting your name and email address. You’ll receive one entry simply by doing so.

After that, you’ll also be offered various methods to earn additional entries. They range from sharing a link to this giveaway on social networks; to commenting or visiting a specific page. The more you participate, the higher your chances of winning! You will receive 5 additional entries into the giveaway for every successful referral via your shared links.

This giveaway begins now and ends Friday, May 23. The winner will be selected at random and informed via email. View the list of winners here.

The Winner

Congratulations, Simon Butler! You would have received an email from Please respond before June 11 to claim your prize. Enquires beyond this date will not be entertained.

Send your products to be reviewed. Contact Jackson Chung for further details.

Related topics: Bitcoin, MakeUseOf Giveaway.

Affiliate Disclosure: By buying the products we recommend, you help keep the site alive. Read more.

Whatsapp Pinterest

Leave a Reply

Your email address will not be published. Required fields are marked *

  1. Martin
    May 27, 2014 at 2:46 pm

    who won the gridseed???

  2. Morrison
    May 24, 2014 at 6:27 am

    Bitcoin... Because I was not aware of the rest until now ;)

  3. Cindy
    May 23, 2014 at 5:59 pm

    Bitcoin as it's the only one I'm using right now, but am going to check out the others

  4. Waleed
    May 23, 2014 at 4:07 pm

    Dogecoin.. much profitable, such community, Wow

  5. Radite P
    May 23, 2014 at 3:57 pm

    Bitcoin choose a limit on the number of coins amounting to 21 million, while Litecoin 84 million. The amount of the limit, making Litecoin has a low rate of inflation rather than Bitcoin, because the percentage of the value of the coins were found to increase with smaller levels at Litecoin. Given Bitcoin has almost reached half of that has been found, mine Litecoin an attractive prospect for the miner. In addition to a low inflation rate, the competition is still a little (at least for this year), so for the first invest, can reap the benefits later when the use Litecoin been great.

  6. Stephen G.
    May 23, 2014 at 2:16 pm

    I can't say I have a favorite cryptocurrency. I like that a question like that one can even be asked now though.

  7. Mark A.
    May 23, 2014 at 1:45 pm

    Dogecoin. It's a bit of fun, and no-one takes it too seriously (except those in it for the wrong reasons of course!)

  8. Lucian C
    May 23, 2014 at 1:34 pm

    Dogecoin because it has an awesome community

  9. Amit Konstabler
    May 23, 2014 at 7:06 am

    Bitcoin is the original and most stable coin

  10. Jeff M
    May 23, 2014 at 12:52 am

    I like Dogecoin, because their marketing efforts to raise brand awareness may payoff in the end.

  11. George
    May 22, 2014 at 10:03 pm

    Dogecoin. It's fun, and it may be very profitable if it goes up in the future. Kind of funny how a joke turns out very-well received by the public.

  12. William
    May 22, 2014 at 9:58 pm

    Litecoin. Shows promise as the "silver standard" of cryptocurrencies.

  13. Peter
    May 22, 2014 at 12:44 am

    Dogecoin because great community

  14. Taylor H
    May 21, 2014 at 1:32 pm

    Bitcoin is the only one I've heard of.

  15. Nero T
    May 21, 2014 at 1:04 am

    Bitcoin because it's popular and widely accepted.

  16. Greg
    May 20, 2014 at 2:57 am

    WorldCoin (WDC), because it has a great community behind it and has lots of potential.

  17. Jose Antonio L
    May 18, 2014 at 6:14 pm

    Never mined before so no favorites yet.

  18. Pierre B
    May 18, 2014 at 11:47 am

    Dogecoin, because of the community.

  19. Navneet
    May 18, 2014 at 10:57 am

    Dogecoin as it has future potential

  20. Peter H
    May 17, 2014 at 2:39 am

    Bitcoin. It is the most popular.

  21. Vic L
    May 16, 2014 at 3:10 am

    I encounter the word "Bitcoin" but I don't have any idea about it. they say that you need a specific device to have that.

  22. Mark Arend
    May 14, 2014 at 4:20 pm

    My favorite cryptocurrency is Karmacoin. Fairly profitable right now, plus has some real world depth to it: holding coins in your wallet accrues you shares in their for-profit arm, Karmashares, whose quarterly profits are distributed to all coin holders through their wallets. Amazing stuff.

  23. Florin G
    May 14, 2014 at 12:16 pm

    Bitcoin. It is the most popular and accepted.

  24. Leon G
    May 14, 2014 at 9:18 am

    Litecoin is my favourite cause of simplicity.

  25. El C
    May 13, 2014 at 4:02 am

    Favorite cryptocurrency is bitcoin - herd mentality, that's all!

  26. Alan
    May 12, 2014 at 4:44 pm

    Honestly Litecoin is the only one I've ever mined, but I'm thinking I may have to give Dogecoin a try, it seems to have a lot of support, and in the end, the amount of people backing something is what gives it it's value...

  27. Gerald S
    May 12, 2014 at 10:15 am

    No favorite have not mined at all.

  28. Alexander P
    May 12, 2014 at 6:51 am

    Worldcoin because it will win!!

  29. Keith W
    May 11, 2014 at 9:29 pm

    Bitcoin is the only one I really know about

  30. Akshay Chalana
    May 11, 2014 at 8:03 pm

    My favorite cryptocurrency at present is Dogecoin because I've been mining it for a good five months now and love the community around it.

  31. Tim K
    May 11, 2014 at 7:33 pm

    Like the others, I don't have a favorite crytocurrency. I'm still in the "curious" stage.

  32. Sam K
    May 11, 2014 at 3:56 pm

    Bitcoin, caz it's really hot and will last for a long time.

  33. Tyler
    May 11, 2014 at 3:46 pm

    Dogecoin is best currency for me.

    Much community Such fun

    very crypto wow so great

  34. Beh H
    May 11, 2014 at 1:46 pm

    Anything will do!

  35. Jacob Summerhays
    May 11, 2014 at 12:25 pm

    Dogecoin, too the moon! Thats why

  36. Tejash C
    May 11, 2014 at 9:00 am

    Bitcoin, basically because of its popularity!

    May 11, 2014 at 8:37 am


  38. Philip Hellemann
    May 11, 2014 at 8:07 am

    I like Dogecoin because of the awesome Community! Cmon shibes TO THE MOON!

  39. Carlos Martell
    May 11, 2014 at 7:01 am

    I prefer Dogecoin because of its community in reddit! TO THE MOON FELLOW SHIBES!

  40. Eric R
    May 11, 2014 at 5:43 am

    dogecoin as it gets pronounce improperly all the time

  41. Mehul B
    May 11, 2014 at 5:13 am

    I don’t have a favorite cryptocurrency

  42. Nicholas Green
    May 11, 2014 at 2:54 am

    Bitcoin is still my favorite crypto-currency.

  43. Victor
    May 11, 2014 at 2:30 am

    Bitcoin might have been the first cryptocurrency on the block, but nowadays it's slow, bloated and in the hands of an elite few in complete contradiction to the principles of a peer-to-peer cryptocurrency. I'm putting my money in Dogecoin; simply put, very community, few greed.

    Nextcoin is also pretty cool, but you can't mine it, so it's less fun.

  44. Peter V
    May 11, 2014 at 12:08 am

    I don't have a favorite cryptocurrency. Sadly, my ignorance prevents any preference. Reading this page has piqued my interest, though.

  45. Joe
    May 10, 2014 at 9:09 pm

    My favorite cryptocurrency is Bitcoin because it has a longer history and seems to be better understood and more widely accepted.

  46. Denis K
    May 10, 2014 at 7:04 pm

    I don’t have

  47. Theo E
    May 10, 2014 at 6:37 pm

    I see the most potential with Litecoin.

  48. Brian K
    May 10, 2014 at 6:19 pm

    I don’t have a favorite cryptocurrency

  49. Amith
    May 10, 2014 at 5:36 pm

    LiteCoin. Much easier to mine

  50. Rachel K
    May 10, 2014 at 5:16 pm

    Don't have a favourite

  51. pceasies
    May 10, 2014 at 5:03 pm

    Litecoin is my favorite since it's one of the most available alt-coin currencies and is more profitable to mine than Bitcoin. (There are exchanges, pools, etc)

  52. Anthony
    May 10, 2014 at 4:49 pm

    BTC, original and so has at least some trust built up (though its all relative, and all very much a gamble)

  53. Jeff Fisher
    May 10, 2014 at 4:48 pm

    They are all a gamble but I like Mazacoin - still small and worth getting into.

  54. Bob Johnson
    May 10, 2014 at 4:24 pm

    wow. such like. much dogecoin,

  55. Aleksandr C
    May 10, 2014 at 3:27 pm

    I like Bitcoin!

  56. Andrew
    May 10, 2014 at 1:08 pm

    I don't have a favorite cryptocurrency.

  57. D.P. Wilson-Henry
    May 10, 2014 at 12:30 pm

    I'm looking at Vertcoin going forward.

  58. Le TK
    May 10, 2014 at 12:26 pm

    Doge coin I think

  59. firedoner
    May 10, 2014 at 11:52 am


  60. Jo-Anne Pfoh
    May 10, 2014 at 11:51 am

    litecoin as it is still new enough and small enough unlike bitcoin which is much harder to find. I also like the community

  61. Lesia
    May 10, 2014 at 11:22 am

    Bitcoin!!!!!!! Thanks guys :)

  62. FFabian
    May 10, 2014 at 11:20 am


  63. Logan M
    May 10, 2014 at 11:20 am

    Doge coin is my favourite because its much good, so amazing

  64. S.bitard
    May 10, 2014 at 10:43 am

    I missed Bitcoin and don't have much power to mine Litecoin right now, but I just couldn't miss Dogecoin. It was fun.

  65. Dharmik M
    May 10, 2014 at 10:35 am

    bitcoin, as they started from bottom

  66. Mihir C
    May 10, 2014 at 10:33 am

    Bitcoin, have tried getting hands on some of them!

  67. Dmitriy S
    May 10, 2014 at 10:21 am

    My favorite crypto is Bitcoin!

  68. Rand Omstring
    May 10, 2014 at 10:17 am

    Dogecoin! To the moon!

  69. Michael W Perkins
    May 10, 2014 at 9:51 am

    Bitcoin is all I am familliar with

  70. Benedict Hollamby
    May 10, 2014 at 9:40 am


  71. moinulhaqq
    May 10, 2014 at 6:14 am

    Bitcoin. It is oldest and is much profitable than others

  72. Wyatt
    May 10, 2014 at 4:31 am

    Dogecoin, cause I got into it early.

  73. Aaron
    May 10, 2014 at 3:31 am

    Bitcoin because it's the only one most people know.

  74. Julian
    May 10, 2014 at 2:49 am

    Dogecoin . Because.. Japanese Shiba dog

  75. Mcoi A
    May 10, 2014 at 1:03 am

    I like Bitcoin due to its popularity.

  76. Josh G
    May 9, 2014 at 10:55 pm

    No favorite, but can has a few DOGE.

  77. Justin L
    May 9, 2014 at 10:54 pm

    Right now I mine LTC, so I guess that is my favorite. I guess I chose LTC because when I started it made the most sense with my GPU.

  78. Kaushik M
    May 9, 2014 at 10:48 pm

    Bitcoin is my favorite, due to its versatility and great profitability

  79. Dave W
    May 9, 2014 at 10:47 pm

    Bitcoin due to profitability.

  80. Vincent Smith
    May 9, 2014 at 10:40 pm

    Dog because it was just a joke...

  81. Marko G
    May 9, 2014 at 9:01 pm

    doge, much fun and good community

  82. Derek S
    May 9, 2014 at 8:45 pm


  83. Paul V
    May 9, 2014 at 8:23 pm

    Dogecoin, easier to understand

  84. Dan D
    May 9, 2014 at 8:14 pm

    Since I only mined Bit and Lite, Bitcoins were much more profitable so that's has to be my favorite.

  85. Va D
    May 9, 2014 at 7:57 pm

    Bitcoin since I managed to sell some near it's highest price and before the huge crash so it certainly wasn't a waste of my time and money.

  86. Jason N
    May 9, 2014 at 7:53 pm

    Dogecoin is my favorite right now.

  87. John
    May 9, 2014 at 7:51 pm

    It's Bitcoin because it's the godfather of virtual money and the most versatile in the ways to mine right now

  88. Matthew W
    May 9, 2014 at 7:08 pm

    Don't have a favorite

  89. Bob Pianka
    May 9, 2014 at 7:07 pm

    Currently a fan of Dogecoin and Litecoin

  90. John T
    May 9, 2014 at 7:01 pm

    very doge, much fun

  91. Ryk van Donselaar
    May 9, 2014 at 6:59 pm

    Been trying to mine Bitcoins but i have to admit after all the negative stuff over the last few months the enthusiasm is waning.

  92. Jasmin
    May 9, 2014 at 6:52 pm

    Doge, because of the community

  93. John
    May 9, 2014 at 6:46 pm

    Litecoin, quite famous, while there is a much larger proportion left for mining, so there is probably a brighter future for miners and improvement in mining Litecoins. Also it is considered as safer by some.

  94. Jared
    May 9, 2014 at 6:44 pm

    Dogecoin - they do charity and you don't need an ASIC miner

  95. Jonathan S
    May 9, 2014 at 6:11 pm

    Bitcoin is the most important and the only cryptocurrency that I really know. So it's my favourite.

  96. Alexandru S
    May 9, 2014 at 6:03 pm

    Not really my thing either, as someone said earlier. I've have a basic knowledge of all these currencies but I never was really attracted.

  97. Terry M
    May 9, 2014 at 5:52 pm

    Dogecoin is rather interesting.

  98. Wei Lian L
    May 9, 2014 at 5:52 pm

    Bitcoins as I still believe in them

  99. Jakub
    May 9, 2014 at 5:51 pm

    Dogecoin is my fav because TO THE MOON!

  100. Raxin
    May 9, 2014 at 5:50 pm

    Primecoin. Started as a CPU only coin and now has an excellent GPU miner. Currently more profitable than scypt coins.

  101. Todd E
    May 9, 2014 at 5:36 pm

    I have 3 of these units which work well but can be a bit noisy. The most important part is to use a litecoin calculator and see how long it will take to earn back the money you spent to start mining. This may influence your decision. One miner out there has come up with a solution to stack the units and removes some of the fans in this process. My units do not generate a lot of heat. Also these gridseed use a lot less power than mining using multiple GPUs.

  102. moorandor
    May 9, 2014 at 5:36 pm

    I heard first about BTC, so this one, otherwise I don't really know every detail of them all

  103. John C
    May 9, 2014 at 5:31 pm

    Dogecoin, community is great and they do charity etc.

  104. Declan
    May 9, 2014 at 5:27 pm

    BTC is my favourite CC because it's the granddaddy of them all

  105. Jorge B
    May 9, 2014 at 5:12 pm

    I've only heard about cryptocurrencies, I haven't really collected them.

  106. Doug
    May 9, 2014 at 5:07 pm

    Dogecoin because it's not too serious yet the community has done some good things in the less than 6 months of the currency's existence.

  107. Xae
    May 9, 2014 at 5:03 pm


  108. Gord
    May 9, 2014 at 5:02 pm

    Its the one that is well known.

  109. Gord
    May 9, 2014 at 5:02 pm


  110. Geoffrey G
    May 9, 2014 at 4:58 pm

    Love all cryptocurrency, Because its the future! but if i must choose one it will be Dogecoin. Because of the funny dog!

  111. MP
    May 9, 2014 at 4:48 pm

    not really my thing

  112. Lance Thibodeau
    May 9, 2014 at 4:44 pm

    Dogecoin is where it's at.

  113. Shivam Chawla
    May 9, 2014 at 4:41 pm

    BitcoinPlus :)

  114. JeffC
    May 9, 2014 at 4:36 pm

    I'm going to say Dogecoin, for no particular reason!

  115. Callisto
    May 9, 2014 at 4:22 pm

    Dogecoin is #1 (community/attitude), close 2nd is Bitcoin (what I started mining).

  116. Ashish C
    May 9, 2014 at 4:13 pm

    Dogecoin - money, fun, community, script.....................

  117. Nick Lucci
    May 9, 2014 at 4:10 pm

    Dogecoin, becuase its going To the Moon!

  118. Kim M
    May 9, 2014 at 3:45 pm

    I don't actually do any of this and have only heard of bitcoin. If I won this I would sell it.

  119. mikey
    May 9, 2014 at 3:35 pm

    Dogecoin all the way. To the mooon!

  120. Cody Dean
    May 9, 2014 at 3:21 pm

    Dogecoin! TO THE MOON!

  121. Tom B
    May 9, 2014 at 3:10 pm

    My favorite cryptocurrency is Bitcoin, because it's what I started out with.

  122. Sayed I
    May 9, 2014 at 2:59 pm

    none - i donot believe in that idea.

  123. Cthulhu
    May 9, 2014 at 2:45 pm

    Doge, because the community

  124. Al C
    May 9, 2014 at 2:42 pm

    Bitcoin - so I can pay if held to ransom

  125. Don
    May 9, 2014 at 2:32 pm

    I don't know too much about the various currencies and would probably just stick with bitcoin.

  126. Nguyen Ha Huan
    May 9, 2014 at 2:00 pm

    Loving dogecoin because of the awesome community on reddit

  127. Scott H
    May 9, 2014 at 1:41 pm

    my is dogecoin because if you need help you can ask someone from the dogecoin community to help you with problems your having and they will help you and be friendly will doing it and it is pretty stable currency too that whys

  128. AHB
    May 9, 2014 at 1:31 pm

    My favorite is dogecoin because the community is wonderful and it takes iteself less serious than other cyrptocurrencies.

  129. Jeff Tung
    May 9, 2014 at 1:24 pm

    My favorite coin is dogecoin because of the awesome community.

  130. Scott H
    May 9, 2014 at 1:11 pm

    love the reveiw every cool and useful

  131. Bogdan
    May 9, 2014 at 1:01 pm

    Bitcoin mining is not profitable at the current bitcoin price. Winning this asic miner would be the only way of getting back my investment in a similar product :)