Bitdeer SealMiner A3 Air
Released in September 2025, the Bitdeer SealMiner A3 Air is an air-cooled SHA-256 ASIC for BTC and BCH with 260 TH/s at 3640 W, an efficiency of 14 J/TH.
Daily profit$6.70
Income / day$9.88at today's BTC price and difficulty
Electricity / day−$3.1887.4 kWh a day · $0.0364/kWh
Income vs electricity · Mines BTC
Where to buy 4
| Seller | Ships from | Availability | ROI | Price | |
|---|---|---|---|---|---|
 X-ON Mining
|
China | In stock | 594 days | $3,978 | $3,978View offer → |
 Yesmining
✓ Verified seller
|
China | In stock | 597 days | $3,998 | $3,998View offer → |
OneMiners
✓ Verified seller
|
United States | In stock | 1007 days | $6,749 | $6,749View offer → |
 Cryptoware
✓ Verified seller
|
United Kingdom | In stock | 1108 days | $7,424 | $7,424View offer → |
Profit
| Income | Electricity | Profit | |
|---|---|---|---|
| Day | $9.88 | −$3.18 | $6.70 |
| Week | $69.19 | −$22.26 | $46.93 |
| Month | $296.51 | −$95.40 | $201.12 |
| Year | $3,608 | −$1,161 | $2,447 |
Price history
━ Average price ━ Lowest price
Specifications
ManufacturerBitdeer
ModelBitdeer SealMiner A3 Air
Also known asBitdeer SealMiner A3 Air Bitcoin Miner
ReleaseSep 2025
AlgorithmSHA-256
Hashrate260 TH/s
Power3,640 W
Efficiency14.0 J/TH
Noise75 dB
Size197 × 365 × 292 mm
Weight15.5 kg
InterfaceEthernet
Temperature5–45 °C
Humidity5–95 %
About this miner
The Bitdeer SealMiner A3 Air is an ASIC miner by Bitdeer for the SHA-256 algorithm, rated at 260 TH/s on 3,640 W. It came out in September 2025. At 14.0 J/TH it is 47% more efficient than the median SHA-256 miner we track (26.4 J/TH). At $0.036/kWh it ranks #54 of 247 SHA-256 miners by daily profit, earning about $6.70 a day mining BTC. The best price on MinerPrices is $3,978. At today's rates it would pay for itself in about 594 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 Pro Air | 290 TH/s | 3,625 W | $7.86 |
 Bitmain Antminer S21 XP (270Th) | 270 TH/s | 3,645 W | $7.08 |
 MicroBT WhatsMiner M72S | 264 TH/s | 4,000 W | $6.54 |
 Bitdeer SealMiner A2 Pro Air | 255 TH/s | 3,790 W | $6.38 |
 Bitmain Antminer S21 Pro (245Th) | 245 TH/s | 3,675 W | $6.10 |
 Canaan Avalon A1566I | 261 TH/s | 4,500 W | $5.99 |