Bitmain · SHA-256
Bitmain Antminer S21 Immersion (227Th)
- Hashrate227 TH/s
- Power4,199 W
- Efficiency18.5 J/TH
- AlgorithmSHA-256
- ReleaseDec 2024
Daily profit$3.96at $0.0335/kWh
Payback351 daysBest price $1,387
Income / day$7.33at today's BTC price and difficulty
Electricity / day−$3.38100.8 kWh a day
Income vs electricity · Mines BTC
from $1,387
Compare 1 offer
Where to buy 1
| Seller | Ships from | Availability | ROI | Price | View offer |
|---|---|---|---|---|---|
 Extended warrantyPay in instalmentsIn stock, fast delivery
|
United States | In stock | 351 days | $1,387 | $1,387View offer → |
Profit
| Income | Electricity | Profit | |
|---|---|---|---|
| Day | $7.33 | −$3.38 | $3.96 |
| Week | $51.33 | −$23.63 | $27.70 |
| Month | $219.99 | −$101.28 | $118.71 |
| Year | $2,677 | −$1,232 | $1,444 |
Price history
Average priceLowest price
Specifications
ManufacturerBitmain
ModelBitmain Antminer S21 Immersion (227Th)
ReleaseDec 2024
AlgorithmSHA-256
Hashrate227 TH/s
Power4,199 W
Efficiency18.5 J/TH
Noise50 dB
CoolingOil immersion
Size293 × 236 × 364 mm
Weight17.1 kg
InterfaceEthernet
Temperature30–55 °C
Humidity10–90 %
About this miner
The Bitmain Antminer S21 Immersion (227Th) is an ASIC miner by Bitmain for the SHA-256 algorithm, rated at 227 TH/s on 4,199 W. It came out in December 2024. Its efficiency of 18.5 J/TH is close to the median SHA-256 miner we track (20.4 J/TH). At $0.034/kWh it ranks #110 of 299 SHA-256 miners by daily profit, earning about $3.96 a day mining BTC. The best price on MinerPrices is $1,387. At today's rates it would pay for itself in about 351 days. It is built for immersion cooling in dielectric fluid.
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