
Bitdeer · SHA-256
Bitdeer A2 Pro
Hashrate258 TH/s
Power3,844 W
Efficiency14.90 J/TH
Availability4 days HK
Net profit / month
at $0.070/kWh$80
at $0.070/kWh$80

The Antminer S21 XP is an air-cooled SHA-256 ASIC miner from Bitmain, built to mine Bitcoin (BTC). It delivers 270 TH/s at a power draw of 3,645 W, which works out to roughly 13.5 J/TH.
At 13.5 J/TH it is among the most efficient Bitcoin miners currently available. Lower J/TH means more hashrate for every kilowatt-hour, which matters most over the multi-year life of a miner.
It is air-cooled with built-in fans and runs in standard mining racks, best placed in a dedicated, well-ventilated facility rather than at home.
| Manufacturer | Bitmain |
|---|---|
| Model | Antminer S21 XP |
| Algorithm | SHA-256 |
| Mineable coins | Bitcoin (BTC) |
| Hashrate | 270 TH/s |
| Power | 3,645 W (calculated) |
| Efficiency | 13.5 J/TH |
| Cooling | Air cooling (fans) |
| Condition | New |
| Availability | HK Stock |
| Warranty | Per quotation |
| Minimum order | 1 unit |



