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Bitmain · SHA-256 · In stock
Antminer S21
The Bitmain Antminer S21 delivers 200 TH/s of SHA-256 hashrate at 17.5 J/TH, drawing 3500 W. Buy it outright or deploy it into one of our 18 hosting facilities with monitored power, cooling and 24/7 support.
Hashrate
200 TH/s
Power draw
3500 W
Efficiency
17.5 J/TH
Noise
75 dB
Antminer S21 payback math
Estimates assume $0.0456 of gross mining revenue per TH/s per day and continuous operation at 3500 W. Network difficulty, Bitcoin price and uptime change these figures — returns are estimated, not fixed or risk-free.
| Electricity scenario | Rate | Gross / day | Power cost / day | Net / day | Estimated payback |
|---|---|---|---|---|---|
| Hosted (ProElectricRig) | $0.055/kWh | $9.12 | $4.62 | $4.50 | 1220 days (~40.7 mo) |
| Grid-balanced | $0.070/kWh | $9.12 | $5.88 | $3.24 | 1694 days (~56.5 mo) |
| Commercial | $0.095/kWh | $9.12 | $7.98 | $1.14 | 4816 days (~160.5 mo) |
Hosting this Antminer S21
- Rack space, power and cooling in 18 monitored facilities
- Firmware tuning and auto-restart on hashboard faults
- Live hashrate telemetry inside your dashboard
- Payouts settled to your platform wallet balance