Bitdeer SealMiner A3 Air (260Th/s)
Air cooling
Description
The Bitdeer SealMiner A3 Air offers 260 Th/s at 3640W for Bitcoin mining. Two fans and a 197×365×292 mm chassis keep deployment flexible at 75 dB. September 2025 release makes it a contemporary air-cooled choice.
Specifications
| Manufacturer | Bitdeer |
| Model | SealMiner A3 Air |
| Also known as | Bitdeer SealMiner A3 Air Bitcoin Miner |
| Release | Sep 2025 |
| Size | 197 x 365 x 292mm |
| Weight | 15500g |
| Noise level | 75dB |
| Fan(s) | 2 |
| Power | 3640W |
| Voltage | 220-277V |
| Interface | Ethernet |
| Temperature | 5 - 45 °C |
| Humidity | 5 - 95 % |
Profitability
| Daily | Monthly | Yearly | |
|---|---|---|---|
| Income | $10.45 0.000125 BTC |
$313.61 0.003759 BTC |
$3,815.53 0.045737 BTC |
| Electricity | -$4.37 | -$131.04 | -$1,594.32 |
| Profit | $6.09 | $182.57 | $2,221.21 |
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
Exceptional value. The price-to-performance ratio is among the best I've seen. Already recommended to my mining group.
The power efficiency on this generation is what makes mining viable in 2026. Without hardware like this, home mining wouldn't be profitable.
The gold standard for mining hardware. When people ask me what to buy, I point them to this. Reliability is everything in mining.
Very satisfied with my purchase. The miner runs 24/7 in my basement and I barely notice it's there. Quiet, cool, and profitable.
Happy I chose this model. It was between this and a competitor and I'm confident I made the right call. Zero regrets after 4 months.
Three words: buy this miner. The efficiency, reliability, and support make it a no-brainer for anyone serious about mining.
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.
