Antminer S21 mining profitability

Bitmain ASIC. Mines SHA-256. At the maker on 4 November 2026: sold out, listed at $5,400.

Today the Antminer S21 earns most on Bitcoin: $7.58 a day with merge-mined coins, and $0.86 after power at $0.08 a kWh. It pays for electricity up to $0.090 a kWh, and at $0.08 its list price pays back in never at today's revenue.

Updated 10 November 2026. Revenue is before pool fees (usually 1–2%); difficulty and price change daily. Open in the calculator to set your own power price, pool fee, quantity and difficulty growth.

Specifications

#AlgorithmHashratePowerEfficiency
1SHA-256 power on wall @25°C inlet air200 TH/s3,500 W17.5 J/TH

What it earns on each coin

#CoinAlgorithmEarns a dayMerge-mined on topProfit a day at $0.08BreakevenA day’s coins vs volumeLast block
1BitcoinBTCSHA-256$7.19+$0.39$0.86$0.090/kWh0.11% · sells easily21 min
2Bitcoin SVBSVSHA-256$6.72—−$0.0036$0.080/kWh0.27% · sells easily—
3eCashXECSHA-256$6.28—−$0.44$0.075/kWh0.06% · sells easily39 min
4Bitcoin CashBCHSHA-256$5.19—−$1.53$0.062/kWh0.08% · sells easily19 min
5DigiByteDGBSHA-256$4.93—−$1.79$0.059/kWh0.19% · sells easily—
6Fractal BitcoinFB merge-mined, paid on topSHA-256$0.0018—on top—1.6% · sells easily—
7HathorHTR merge-mined, paid on topSHA-256$0.39—on top—0.09% · sells easily13 min
8ElastosELA merge-mined, paid on topSHA-256$0.000036—on top—0.02% · sells easily15 min

Figures from Bitmain, checked 4 November 2026.

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