Posts Tagged ‘Bitmain’

Bitmain Now Offering AntMiner S7-LN with 1KW ATX Power Supply

30, May 2016

bitmain-antminer-s7-ln

Bitmain has a new interesting offer for miners in the form of a lower hashrate ASIC miner for Bitcoin called AntMiner S7-LN that comes packaged with a 1KW Enermax ATX PSU. The new Bitmain AntMiner S7-LN apparently has less chips – 90x BM1385 instead of the 135 found in the regular S7 and as a result you get a bit more than half the hashrate at about half the power usage. The AntMiner S7-LN is rated at 2.7 THS hashrate and about 700W of power usage at the wall and can be yours for $291 USD without the shipping and taxes per unit – the miner and the PSU for it – with the shipping expected to start on June 2nd. The good thing about this offer is that the PSU is a regular ATX one so it can be used for a PC or a GPU mining rig and not only for ASIC miners when the time to shut down the S7-LN comes.

Bitmain AntMiner S7-LN Specifications:
– Hash Rate: 2.7 TH/s ±5%
– Power Consumption: 697W + 10% (at the wall, with Enermax, 25C ambient temp)
– Power Efficiency: 0.25 J/GH + 10% (at the wall, with Enermax, 25°C ambient temp)
– Rated Voltage: 11.60~13.00V
– Chip quantity per unit: 90x BM1385
– Dimensions: 306mm(L)*150mm(W)*275mm(H)
– Cooling: 2x 12038 fan
– Operating Temperature: 0 °C to 40 °C
– Network Connection: Ethernet
– Default Frequency: 700 MHz
– PSU: 1000W Enermax golden power supply

The only drawback is that the Bitcoin block reward halving is right around the corner, so in about a month and a half the coins mined by the miner will be cut in half. So now it might not be the best time to consider purchasing the current generation of Bitcoin ASIC miners even of the offer is an attractive one. So consider carefully whether now is the right time to purchase SHA256 ASIC mining hardware or better to wait for the halving and then consider what to do…

Innosilicon A4 Dominator Scrypt ASICs Might Be Coming Soon

17, Nov 2015

innosilicon-logo

Innosilicon is apparently looking for investors into their new A4 Dominator Scrypt ASIC (both chips and miners based on them) to help them bringing the new the next generation 14nm chips on the market in a few months time with 1.2 Watt power usage per MHS. It seems that they have already designed and taped-out the A4 Dominator chips and are now entering the next round of full mask mass production using apparently Globalfoundries 14nm production process.

A4 Dominator ASIC & Miner Specifications:
– A4 ASIC: 3 MHS per chip at 3.6W nominal, support DCDC less PCB
– Extreme Low Power: daisy chained ASIC running at 0.7V, only in 14nm
– Miner Performance: 600 MHS from 720W at the Wall or 850 MHS from 1020W
– PSU Requirements: common PCI-E 8 Pins/6+2Pins with 12V output
– Included: Reprisal Pi running the most user friendly A2 terminator Software

“We have opened our A4 ASIC/Miner production to committed partners in order to share in both the cost and the profit. Anyone who commits $1.5 million to this partnership will get to share our ASIC production masks or purchase miners at cost for your mining farms. We have fully de-risked the design by shouldering all the R&D and MPW costs for the testchips. Also, we will showcase our testchip and test miners in couple of months to demonstrate the A4’s unsurpassable efficiency. We need only 4 to 5 partners to participate in this incredible risk free win-win partnership round.”

Apart from the new A4 chips that will be for Scrypt the company is also working on new A3 chips for SHA-256 that apparently offer less than 0.2 Watt per GHS, so things should be similar to their first generation A1 for BTC and A2 for LTC mining hardware. In our opinion however Innosilicon will have to work on something else as well and that is securing partners to make their mining hardware more easily accessible to users and not only to large mining operations. They could also work on an approach similar to that of Bitmain to offer direct sales to end users as apparently they could be the new driving force behind Scrypt mining with SFARDS going completely silent and other companies just now starting to look for partners to work on development and not production.

BitMain AntMiner S7 Batch 1 Now Available for Pre-Order

31, Aug 2015

bitmain-antminer-s7

After the recent announcement of the new BitMain BM1385 ASIC chips for mining Bitcoin or other SHA-256 crypto currencies BitMain has started taking pre-orders for their first miner based on the new chips – the Antminer S7. The new BitMain Antminer S7 miner has a more dense configuration than previous Antminer machines, using 162 chips in the same space that the S5 used only 60 in. The S7 uses just 1210 watts of electricity to deliver 4.86 terahashes per second of mining power per unit, so specification wise the new miners looks very attractive, especially when compared to older hardware.

antminer-comparison-chart

BitMain AntMiner S7 Specifications:
1. Hash Rate: 4.86 TH/s ±5%
2. Power Consumption: 1210 W (at the wall, with APW3, 93% efficiency, 25C ambient temp)
3. Power Efficiency: 0.25 J/GH (at the wall, with APW3, 93% efficiency, 25°C ambient temp)
4. Rated Voltage: 12V+5%, should not be less than 12.0V
5. Chip quantity per unit: 162x BM1385
6. Dimensions: 301mm(L)*123mm(W)*155mm(H)
7. Cooling: 2x 12038 fan
8. Operating Temperature: 0 °C to 40 °C
9. Network Connection: Ethernet

You can get the new miner for $1823 USD or roughly 7.896 BTC with the current exchange rate. When you add a suitable power supply like the 1600W APW3-12-1600-B2 that Bitmain sells for $155 USD (0.671 BTC) and you factor in the cost of shipping and custom taxes, electricity and the slowly increasing network difficulty you are already looking in probably 8-9 months at least to get back what you have paid for the miner. So although specifications wise the device looks very good it is still slow to ROI in the current not so great for Bitcoin conditions, but then again this is probably the best Bitcoin mining hardware available to end users at the moment. You can already pre-order a BitMain AntMiner S7 from Batch 1 with expected shipping date announced as late September of 21~30 with a possible delay of up to 10 days extra.


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