Bitmain Antminer S21 Pro (245Th)
This 245 TH/s variant of Bitmain's air-cooled Antminer S21 Pro mines SHA-256 coins including BTC, BCH and BSV. Released in November 2025, it consumes 3675 W at 15 J/TH.
Daily profit$6.12
Income / day$9.33at today's BTC price and difficulty
Electricity / day−$3.2188.2 kWh a day · $0.0364/kWh
Income vs electricity · Mines BTC
Where to buy 6
| Seller | Ships from | Availability | ROI | Price | |
|---|---|---|---|---|---|
 LeedMiner
✓ Verified seller
|
China | In stock | 313 days | $1,911 | $1,911View offer → |
OneMiners
✓ Verified seller
|
United States | In stock | 376 days | $2,299 | $2,299View offer → |
 X-ON Mining
|
China | In stock | 393 days | $2,400 | $2,400View offer → |
 Cryptoware
✓ Verified seller
|
United Kingdom | In stock | 414 days | $2,529 | $2,529View offer → |
 BitHash
|
United Arab Emirates | In stock | 435 days | $2,660 | $2,660View offer → |
 NexMine
|
Germany | In stock | 465 days | $2,843 2,535 EUR |
$2,843View offer → |
Profit
| Income | Electricity | Profit | |
|---|---|---|---|
| Day | $9.33 | −$3.21 | $6.12 |
| Week | $65.30 | −$22.47 | $42.83 |
| Month | $279.87 | −$96.31 | $183.55 |
| Year | $3,405 | −$1,172 | $2,233 |
Price history
━ Average price ━ Lowest price
Specifications
ManufacturerBitmain
ModelBitmain Antminer S21 Pro (245Th)
Also known asAntminer S21 Pro
ReleaseNov 2025
AlgorithmSHA-256
Hashrate245 TH/s
Power3,675 W
Efficiency15.0 J/TH
Noise75 dB
Size400 × 195 × 290 mm
InterfaceEthernet
Temperature5–45 °C
Humidity5–95 %
About this miner
The Bitmain Antminer S21 Pro (245Th) is an ASIC miner by Bitmain for the SHA-256 algorithm, rated at 245 TH/s on 3,675 W. It came out in November 2025. At 15.0 J/TH it is 43% more efficient than the median SHA-256 miner we track (26.4 J/TH). At $0.036/kWh it ranks #62 of 247 SHA-256 miners by daily profit, earning about $6.12 a day mining BTC. The best price on MinerPrices is $1,911. At today's rates it would pay for itself in about 313 days. At 75 dB it belongs in a dedicated mining site or hosting facility.
BCH
BSV
BTC
FB
NMC
PPC
QUAI
XECSimilar miners
| Model | Hashrate | Power | Profit |
|---|---|---|---|
 Bitdeer SealMiner A3 Air | 260 TH/s | 3,640 W | $6.72 |
 MicroBT WhatsMiner M70S+ | 244 TH/s | 3,140 W | $6.55 |
 Bitdeer SealMiner A2 Pro Air | 255 TH/s | 3,790 W | $6.40 |
 Bitmain Antminer S21 Pro (234Th) | 234 TH/s | 3,510 W | $5.84 |
 Bitmain Antminer S21+ (235Th) | 235 TH/s | 3,877 W | $5.56 |
 Bitdeer SealMiner A2 | 226 TH/s | 3,730 W | $5.35 |