Bitmain · SHA-256
Bitmain Antminer S21 Immersion (239Th)
- Hashrate239 TH/s
- Power4,422 W
- Efficiency18.5 J/TH
- AlgorithmSHA-256
- ReleaseDec 2024
Daily profit$4.16at $0.0335/kWh
Payback357 daysBest price $1,482
Income / day$7.72at today's BTC price and difficulty
Electricity / day−$3.56106.1 kWh a day
Income vs electricity · Mines BTC
from $1,482
Compare 3 offers
Where to buy 3
| Seller | Ships from | Availability | ROI | Price | View offer |
|---|---|---|---|---|---|
 In stock, fast delivery
|
China | In stock | 357 days | $1,482 | $1,482View offer → |
 Extended warrantyPay in instalmentsIn stock, fast delivery
|
United States | In stock | 357 days | $1,484 | $1,484View offer → |
 Cryptoware✓ Verified seller
|
United Kingdom | In stock | 393 days | $1,632 | $1,632View offer → |
Profit
| Income | Electricity | Profit | |
|---|---|---|---|
| Day | $7.72 | −$3.56 | $4.16 |
| Week | $54.01 | −$24.89 | $29.12 |
| Month | $231.46 | −$106.66 | $124.80 |
| Year | $2,816 | −$1,298 | $1,518 |
Price history
Average priceLowest price
Specifications
ManufacturerBitmain
ModelBitmain Antminer S21 Immersion (239Th)
ReleaseDec 2024
AlgorithmSHA-256
Hashrate239 TH/s
Power4,422 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 (239Th) is an ASIC miner by Bitmain for the SHA-256 algorithm, rated at 239 TH/s on 4,422 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 #103 of 299 SHA-256 miners by daily profit, earning about $4.16 a day mining BTC. The best price on MinerPrices is $1,482. At today's rates it would pay for itself in about 357 days. It is built for immersion cooling in dielectric fluid.
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