Customers say
Customers report that the ASIC miner works perfectly with cgminer on Mac and operates right out of the box, making it easy to set up and suitable for hobbyists. The device runs very hot, and while some customers find it worth the $100 price, others say it's not worth the cost. Speed performance receives mixed feedback, with some customers reporting slow mining rates, and power consumption is generally low. Compatibility is also mixed, with one customer noting issues with USB 3.0 ports.
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79 customers mention functionality, 67 positive, 12 negative
Customers report that the input output card works perfectly, particularly with cgminer on Mac and immediately out of the box, with one customer noting successful operation with BitMinter in Ubuntu.
Works great. Wasn't in a box, so I was afraid that it might not be okay. But its doing its job better then the other ones!Read more
Works as advertised! Pretty simple and once they are going you don't need to worry about them....Read more
This little Block Erupter works like a charm. It does exactly what it says it should. That being said, it's not profitable....Read more
Functional and reliable, however the difficulty on bitcoin has climbed so high that these aren't really practical except in large arrays.Read more
48 customers mention mining potential, 47 positive, 1 negative
Customers find the mining potential of this device positive, describing it as great for hobbyists, with one customer noting it works well as a learning tool.
...Overall: Good Product Fast Shipping Would Recommend to anybody interested in learning more about bitcoin and how the system works.Read more
This is a great product for anyone wanting see how bitcoin works but by no means will you make back in bitcoin what you spend on this device, unless...Read more
Amazing product by ASiCMiNER! friedcat for President! Must Buy! Some say it doesn't make ROI but it does! (Within 3 months) !Read more
These Erupters are great for a good bitcoin starter pack....Read more
24 customers mention ease of setup, 17 positive, 7 negative
Customers find the miner easy to set up, with one mentioning it's the simplest way to dabble in Bitcoin mining.
...Easy to install, easy to set up, easy to run, easy to just let it run....Read more
...Don't buy this expecting to get anything. It's a good intro into setting up a miner, so you can test your patience before investing in a useful miner.Read more
...these unless you are going to mine alt coins as the difficulty on bitcoin is too high for theseRead more
...these work very flawlessly with BFGminer and BFG is a very easy program to set up and run. so for beginners I recommend using that....Read more
49 customers mention value for money, 20 positive, 29 negative
Customers have mixed opinions about the miner's value for money, with some finding it worth $100 while others say it's not worth the price.
...This thing is very hot. IT WILL NEVER PAY FOR ITSELF. Bitcoin difficulty is continuing to climb....Read more
...Mine got avg. 334 Mh/s. These run rather warm. Great price, maybe I'll buy more if the supply holds up.Read more
...It does exactly what it says it should. That being said, it's not profitable....Read more
Very constant hasrate around 334. Good buy. They do run a little hot.Read more
19 customers mention speed, 9 positive, 10 negative
Customers have mixed experiences with the miner's speed, with some reporting that it mines slowly, while one customer notes it runs faster than the stated 330mh/s.
I'm glad I picked up a couple when I did. The hash rates are now insane so unless you're willing to invest in a large number, don't expect to get...Read more
...draw is almost nil at 2.5w per unit and mine at least run faster than the stated 330mh/s. I get around 336mh/s per unit, bringing my total to over...Read more
Slow for the latest difficulty rating. Once up and running hashes well. Run hot so get the fans for your cooling needs.Read more
This very small ASIC miner performs great at a consist speed as advertised--333 MH/s. Note: it gets very, very hot--too hot to touch....Read more
13 customers mention power consumption, 5 positive, 8 negative
Customers have mixed opinions about the power consumption of the miner, with some noting very low power usage, while others report it being underpowered.
...Unfortunately now, their power usage has surpassed their hashing potential. Still, an interesting little piece of history.Read more
...Power draw is almost nil at 2.5w per unit and mine at least run faster than the stated 330mh/s. I get around 336mh/s per unit, bringing my total to...Read more
...to the phone right, but check your system and you see it's sucking 80 watts of power and needing to run the fan at 95%...Read more
...Windows reported a USB port power surge. Going to stick with the Bitmain miners instead.Read more
10 customers mention compatibility, 6 positive, 4 negative
Customers have mixed experiences with the compatibility of this mining card, with one customer reporting it works well with USB hubs, while another mentions it doesn't function on USB 3.0 ports.
Pros: Runs on USB power 5v/500mA ~330 MH/s LED light notifying when block is solved Cons: Overpriced for its ROI...Read more
...While it does work as described, it does not function on USB 3.0 ports, and it does get incredibly hot....Read more
...Also going along with the whole modular idea, you can easily add to your hashing power by just adding another unit to your setup....Read more
...At this point these are WAY too slow given the current difficulty of the bitcoin network....Read more
32 customers mention heat level, 7 positive, 25 negative
Customers report that the miner runs very hot, with one customer noting that the transistors heat up quickly.
Very constant hasrate around 334. Good buy. They do run a little hot.Read more
...mining a sha-256 is your BEST options RUN VERY HOT *NOTE* YOU NEED a fan over there for them to run at full speed....Read more
...It helps you get an idea of what bitcoin is like. They get very hot, and should be cooled, a simple fan will do....Read more
Solid performers that do as intended. These run hot so couple with a USB fan. They also require more power than the cheap hubs can provide....Read more
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I did have to install some drivers that I was unaware I needed, but after that it worked great. I ran BitMinter for a few days off my video card and turned on the audio so I could hear the coin drops when it solved blocks. I installed three of these and the coin drops were constant. I'm getting an average of 1005 Mhps using three of these Block Erupters. I'm also using a Etekcity® Premium 10 Port Powered External USB 2.0 Hub that comes with a 3A power supply and it's working great. I'm using an Arctic Breeze and the miners are slightly warm to the touch when operating.
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Reviewed in the United States on April 14, 2015
Wonderful piece of bitcoin history and they work perfectly as designed and advertized. It is a shame I was not paying attention to this in 2012 but then again maybe it has saved me some money. Bottom line is do some homework. I am going to assume only a beginner would be looking here so let's get on with the beginner review. VJ
54 people found this helpful Reviewed in the United States on November 12, 2013 These Asic miners work perfectly. I personally own six of them! all run 333 mh/s. Pros: Cons: NO ROI, you will not make your money back, not enough horse power in these little things! *NOTE* YOU NEED a fan over there for them to run at full speed. If they get to hot, you will start geting hardware error rates above 1% ( NOT GOOD) HOWEVER, I never have had one of these burn out. and there hot as hell, they should withstand a beating. OVER, IF you want to take up bitcoin mining as a hobby buy these! and have some fun! if you buy 100 of them.. your not making your money back.... Maby...
2 people found this helpful Reviewed in the United States on September 25, 2013 I bought nine of these through Jones Gear (great seller, great price) along with an Anker® USB 3.0 9-Port Hub + 5V 2.1A Charging Port with 12V 5A Power Adapter [VIA VL812-B2 Chipset and updated Firmware 9801], the ARCTIC Breeze Mobile USB-Powered 92mm Portable Fan, Portable Cooling Solution, Quiet Fan - White and Cosmos ® 8 PCS Aluminum VGA video gaming card RAM Cooling Heatsinks heat sink cooler + Cosmos Cable Tie as the Block Erupters can run hot. I got this product because I wanted to learn more about Bitcoin, and I thought it would be a fun hobby. I have not been disappointed. They're great conversation pieces and it's fun to watch the green lights go off when one delivers a Proof of Work. I run these through the BitMinter mining application and I think after installing the drivers it took me all of 30 seconds to get hooked up and hashing in the pool. They typically hash 333-335 MH/s when they're running at full capacity, so better than the advertised 330 MH/s which is great. I should state, however, that if you're looking to buy these as an investment in Bitcoin then you should just buy XBT directly. With the recent difficulty increases (typically ~30% every ~14 days), you will likely never make your money back on these. Even buyers of the heavy-duty ASIC mining devices (200-400+ GH/s) are looking at zero to negative profits by the time of delivery. Almost all of the mining calculators I have seen assume that the difficulty will remain constant for more than 14 days. This is flat out wishful thinking. Assume your XBT generation will go down by 30% every 14 or so days and you have a more approximate estimation. So in conclusion: if you want to learn more about Bitcoin, have something interesting to talk about with people and support the network, this is a great product. If you're trying to make money, I'd encourage you to stay out of mining entirely.
75 people found this helpful
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5.0 out of 5 stars
Guide for anybody that's late to the bitcoin mining party and the most widely available ASIC USB miner.
These ASIC (application specific integrated circuit) USB devices do one thing. Generate SHA-256 hashes at a rate of 336,000,000 a second. So it is a little faster than the 330 MH/s in the spec. As a comparison you can go to www.bitminter.com IMHO the easiest mining place to start with any version 7 or higher java. Using a Lumia windows phone gives me 900,000 to 1,000,000 hashes per second. 990 kH/s - 1.0 MH/s.
On a 64bit core i3 it jumps up to 12 - 14 MH/s. Run this specifically on a GPU (graphics card) that has lots of cores you can jump this up to 30 MH/s up to 290 MH/s which seems awesome compared to the phone right, but check your system and you see it's sucking 80 watts of power and needing to run the fan at 95%
All this elementary introduction aside lets get back to the ASIC here. It will run 336 MH/s and only use 2 to 2.5 watts of power.
This would have been a mint in 2012. To bring this up to 2015 you need to jump up to GH/s, yeah a giga hash. 1,000,000,000. You would need 3 of these to average around that number.
Time to wrap this up and not drag you into any more math which will only disappoint you. This calculation is my opinion based on what I have read in the last month and what I have actually done with my own hardware. A 1 GH/s seems to be the lowest rate to be able to calculate and this does not include SCRYPT this is for SHA-256. (still working on my scrypt testing)
I estimate 1 GH/s running 24/7 would average 7 or 8 cents worth of bitcoin a month. But with pooled mining you have fees and there are transaction fees and like I said you need to do your homework. There are other crypto coins that may be more profitable. There is one other thing you need to take into consideration. How much does your power cost? For me even a small 20 watts costs $1.22 a month.
So if you get free power or if you need some extra heat because these things do run very hot. (any small fan or air flow will cool them or add a small heatsink) go right ahead and buy these up and get a powered USB hub and with 10 or 20 of them mining a multi pool you will get some coin.5.0 out of 5 stars
ALL IN GOOD FUN
Great entry bit coin miner
Very cheap considering what others pay for hardware
you will actually receive your order ( unlike BFL)
Really a lot of fun to be hard with these little miners!
mainly used for ALT COINS. Yes mining bitcoin with these will not get your far unless you own 100 of them
mining a sha-256 is your BEST options
RUN VERY HOT5.0 out of 5 stars
Product Works Great for Hobbyists, DO NOT Buy This As An Investment
Top reviews from other countries
1.0 out of 5 stars Don't waste your money - find something else
Reviewed in Canada on January 18, 2018
Don't waste your money - find something else. These were helpful for mining 4-5+ years ago. Useless now. Heavily overprice.