Bitdeer SealMiner A2 (226Th/s)
Air cooling
Description
The Bitdeer SealMiner A2 produces 226 Th/s at 3730W for Bitcoin mining. Four fans and a 4nm SEAL02 chip keep thermals stable. Released in March 2025, it is a dependable air-cooled SHA-256 miner for scaling operations.
Specifications
| Manufacturer | Bitdeer |
| Model | SealMiner A2 |
| Also known as | BitDeer SEALMINER A2 |
| Release | Mar 2025 |
| Chip name | SEAL02 |
| Chip size | 4nm |
| Noise level | 75dB |
| Fan(s) | 4 |
| Power | 3730W |
| Interface | Ethernet |
| Temperature | 5 - 40 °C |
| Humidity | 10 - 90 % |
Profitability
| Daily | Monthly | Yearly | |
|---|---|---|---|
| Income | $7.94 0.000101 BTC |
$238.05 0.003039 BTC |
$2,896.31 0.036975 BTC |
| Electricity | -$4.48 | -$134.28 | -$1,633.74 |
| Profit | $3.46 | $103.77 | $1,262.57 |
Based on $0.05/kWh. Data refreshes every 24h.
ROI (Return on Investment) = miner price ÷ earnings.
Green = without electricity cost.
Red = after deducting electricity.
Frequently Asked Questions
Customer Reviews
Average miner with average performance. Nothing particularly good or bad about it. It exists and it mines. That's my review.
Good balance of price and performance. You can spend more for marginally better efficiency but this is the sweet spot.
Honest take: good miner but the shipping took forever and the box arrived damaged. Miner survived but the experience was subpar.
My ROI calculations were conservative and this miner still beat them. Paid off in 6.5 months instead of the 8 I projected. Outstanding.
Solid 4 stars. Everything works as expected. If you're on the fence, just buy it. The numbers don't lie.
Can't imagine mining without it now. Upgraded my entire operation and the difference in profitability is substantial. These units pay for themselves.
NOTE
- Incorrect input voltage can cause damage to the miner.
- Use two AC input wires, each with a 16-amp rating.
- Operation is recommended at altitudes below 2000 meters.
Purchasing Guidelines
- The listed retail price does not include customs duties or applicable taxes.
- Orders cannot be canceled or refunded once submitted.
- Product images are for reference purposes only; the actual shipped product will prevail.
Shipping Details
- Products will be shipped from China.
- Fully paid orders will be processed on a first-come, first-served basis.
- Customers bear responsibility for customs delays or issues.
Warranty
- 180-day warranty period starts from the shipping date.
- Valid only for the original purchaser.
- We are not responsible for damages due to non-compliance with instructions.
