The Antminer S9 is manufactured by Bitmain, the largest and most well-known mining equipment manufacturer in the world which has been going since 2013.
The Antminer S9 is one of the most popular ASIC mining devices out there, and other mining hardware is often benchmarked against it. The S9 is also generally considered to be the most energy-efficient miner on the market today, although this will vary depending on electricity costs where you live and the type of PSU used with it (the latter must be purchased separately). Bitmain’s APW3++ power supply currently retails for around $100.
This extra efficiency comes at a price, and this isn’t the cheapest ASIC miner on the market. That hasn’t stopped the S9 being in very high demand, though, due to its commendable efficiency. Indeed, at the time of writing, the unit is sold out on Bitmain’s website, but it should start to ship again later this year. You can buy units from Amazon and auction sites like eBay, although prices are much higher and units may not be covered by Bitmain’s warranty (buyer beware, as ever).
Bitmain regularly improves the specs of S9 units, so if you buy second-hand, make sure to check the exact hash power offered. The most recent units due to be shipped out in March 2018 offer an optimal hash rate of 13.5TH/s.
- Cost: $2,320
- Power usage: 1,375W
- Hash power: 13.5 TH/s
- Daily profit: 0.00179041 BTC