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 | $8.50 0.000109 BTC |
$255.04 0.003276 BTC |
$3,102.98 0.039860 BTC |
| Electricity | -$4.37 | -$131.04 | -$1,594.32 |
| Profit | $4.13 | $124.00 | $1,508.66 |
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
Very satisfied with my purchase. The miner runs 24/7 in my basement and I barely notice it's there. Quiet, cool, and profitable.
I've never been more confident in a hardware purchase. This miner exceeded my expectations in every measurable way. Worth every penny and then some.
I've recommended this miner to everyone in my mining group. Three of them bought units and all are equally impressed. That's consistency.
Simply the best. I've gone through 4 different miners and this is by far the most reliable. Consistent hashrate 24/7 for months.
The power efficiency on this generation is what makes mining viable in 2026. Without hardware like this, home mining wouldn't be profitable.
Very happy with this miner. The efficiency is good, the noise is manageable, and the build quality feels premium. Recommended.
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.
