Posts Tagged ‘Bitmaintech


BitMain has started selling the AntMiner U3 Bitcoin ASIC miner again with a slightly different design than the original first batch, other than that the specifications remain pretty much the same (with some minor differences in cited power usage). The new AntMiner U3 Batch 2 is available with a minimum order quantity of 20 units at a price of 38 USD (0.185 BTC) and the Batch 3 is with a minimum order quantity of just 5 units available at a price of 39 USD (0.19 BTC). The BitMain AntMiner U3 ASIC miners provide 63 GHS at about 60W with 1 Watt per GHS in the new specifications that are published by BitMain with a low noise level.

BitMain AntMiner U3 Specifications:
– Max Hash Rate: 63 GH/s ±5%
– Power Efficiency: 1Watt/GH/s on wall at 0.83V
– Voltage: DC 12V input, 6A
– Chip Quantity per unit: 4
– One 80mm fan
– Noise: ~25 DB at 25 °C ambient temperature
– Hashrate and VDD core voltage can be adjusted via cgminer command line
– USB connection
– 12V AC/DC power brick of 6A, but power line not included
– Certificate Compliance: FCC/CE

BitMain has these miners available for home users that want to have access to affordable priced and silent Bitcoin ASIC miners that want to play with them just for hobby, they are not designed to ROI due to their lower hashrate and not so great power efficiency. Since they are running batch 2 and 3 this means that there is interest in these little devices from users, though you probably would want to get a single unit to play with it and not buy a minimum of 5 or 20 units. This means that most end users will probably not be interested in directly buying AntMiner U3 from BitMain, but will look for some company reselling these at a single piece quantities.


ZeusMiner is now also selling the BitMain AntMiner C1 water cooled Bitcoin ASIC miner after a while ago the company has partnered with RockMiner to also sell their Bitcoin ASIC miners. Zeus is selling the full kit of the AntMiner C1 miners that includes the water cooling kit, so it seems that they are offering the Batch 2 from Bitmain announced a few days ago. The price from ZeusMiner however is higher than if you order directly from Bitmaintech (the manufacturer), but we do have some still unused coupon codes for Zeus that you can find listed below. Do note these are on a fist come – first serve basis. So if you plan on ordering one of these miners you can do so with a bit of a discount using one of the promo codes below by ordering from Zeus…

Some still unused coupon codes for ZeusMiner:

$1 Off Cart Total- raf9b67688d
$1 Off Cart Total- raf59734cc3
$40 Off Cart Total- rafd16bd002
$3 Off Cart Total- raf2e1cc4dd
$115 Off Cart Total – rafa9815fc9
$1 Off Cart Total- rafb6c96019
$1 Off Cart Total – raf16b4712d
$32 Off Cart Total- rafe87888b7
$2 Off Cart Total – raf38aabaae
$2 Off Cart Total – raff1e4c864

For more information about the AntMiner C1 Water Cooled ASIC sold by ZeusMiner…


Last month when the first water cooled Bitcoin ASIC miner from Bitmain – AntMiner C1 was announced you had to either buy the water cooling kit separately from another supplier or use your own components for completeling the water cooling of the miner. It seems that for Batch 2 of the Bitmain AntMiner C1 the company has decided to actually sell the full kit to customers, making it easier and more problem free for the users that now get a complete solution.


The price of the miner is the same as you could previously order it if you also included the suggested water cooling kit – 400 USD (1.092 BTC). As we have previously mentioned the components that Bitmain previously suggested and now includes with the miner for the water cooling solution are available at a quite good price as compared to wath you normally have to pay for some high-end water cooling components. So a good deal as apparently this kit should be able to do just fine in cooling the miner and keeping the noise level low.

For more information about the water cooled Bitmain AntMiner C1 Bitcoin ASIC miner…