Beijing-based Bitmain Technologies Limited, owner of the Antminer series of bitcoin miners, Hashnest,
Antpool and BTC.com, is launching early next week the world’s most silent multi-terahash bitcoin miner
and a silent 2600W PSU specially designed for high-performance mining.
The Antminer R4 uses the world’s most power-efficient 16nm BM1387 ASIC chip for bitcoin mining. It can
deliver a hashrate of 8.6TH/s with a power efficiency of 0.1J/GH and a noise level less than 50dB. At an
ambient temperature of 35°C, the R4’s noise level is 52dB.
The Antminer R4 has been designed with great care to ensure the least possible sound with the maximum
hashrate. It replaces the traditional miner fan with a rotary blade system inspired by the fan of a silent
split air conditioner. The speed of this unique fan is automatically controlled to ensure that it never
produces more sound than is absolutely necessary. The slim design of the Antminer R4 allows it to be
conveniently placed in a book rack or computer table at home.
The APW5 power supply is compatible with the 220V as well as the 110V mains power supply in North
America. On full load, it has a power factor greater than 0.95. With a 220V supply it can deliver an
output of 2600W. It comes with seven 6-pin PCI-e connectors but can easily be fitted with 14 or 20 PCI-e
connectors. It is built for high-power performance and low noise. Like that of the R4, the APW5’s fan is
automatically controlled so it only produces as much sound as is absolutely necessary.
For home users who wish to utilize R4’s exceptional noise level with the optimum performance, Bitmain
highly recommends that they use it with Bitmain’s APW5 power supply.
With the release of these products, Bitmain hopes to bring bitcoin mining back to homes and continue
decentralizing the bitcoin mining network.
