
MicroBT · SHA-256
Whatsminer M65S
Hashrate392 – 396 TH/s
Power7,252–7,326 W
Efficiency18.50 J/TH
AvailabilitySZ Stock
Net profit / month
at $0.070/kWh$50
at $0.070/kWh$50

The Antminer S21+ Hydro is a hydro-cooled SHA-256 ASIC miner from Bitmain, built to mine Bitcoin (BTC). It delivers 358 TH/s at a power draw of 5,370 W, which works out to roughly 15 J/TH.
At 15 J/TH it is a strong efficiency level for current-generation Bitcoin mining. Lower J/TH means more hashrate for every kilowatt-hour, which matters most over the multi-year life of a miner.
As a hydro (water-cooled) unit it needs a liquid-cooling loop rather than fans, allowing high power density and stable chip temperatures. It is a natural fit for Qubite’s hosting in the UAE.
| Manufacturer | Bitmain |
|---|---|
| Model | Antminer S21+ Hydro |
| Algorithm | SHA-256 |
| Mineable coins | Bitcoin (BTC) |
| Hashrate | 358 TH/s |
| Power | 5,370 W (calculated) |
| Efficiency | 15 J/TH |
| Cooling | Hydro (water) cooling |
| Condition | Preorder |
| Availability | Nov Preorder |
| Warranty | Per quotation |
| Minimum order | 1 unit |



