SealMiner A2 Pro Air – 255 TH/s
$3,068.00 $2,147.60
- Hashrate: 255 TH/s
- Power draw: 3,790 W
- Efficiency: 14.9 J/TH
- Algorithm: SHA-256
- Cooling: Air cooling (4 fans)
- Condition: New
- US shipping: $120 flat rate, dispatched in 5-10 business days after payment, 0-1 business days in transit
- 30-day limited warranty · 20-day returns
Product Description
The SealMiner A2 Pro Air is an air-cooled SHA-256 ASIC miner from Bitdeer for Bitcoin (BTC). This 255 TH/s version is listed at 3,790 W, an efficiency of 14.86 J/TH.
As an air-cooled machine it relies on its own fans, so it needs a steady supply of cool intake air and somewhere for the hot exhaust to go. Plan ventilation and noise before the unit arrives.
Before you order
- Power: 3,790 W, about 15.8 A at 240 V. Size the circuit for a continuous load and check the input voltage on the unit before you plug it in.
- Noise: listed at 75 dB, so plan a space away from living areas.
- Algorithm: SHA-256. Read what hashprice means for SHA-256 miners.
- Released: March 2025.
Compare other models in our Bitcoin Miners (SHA-256) range, or see how efficiency is measured in Hashrate, TH/s and J/TH explained.
Technical Specifications
| Vendor | Bitdeer |
| Brand | Sealminer |
| Model | A2 PRO AIR |
| Hash Rate | 255 TH/s |
| Algorithm | SHA-256 |
| Supported Coins | Bitcoin (BTC) |
| Power Consumption | 3790 W |
| Energy Efficiency | 14.86 J/TH |
| Cooling System | Air cooling (4 fans) |
| Dimensions | Compact rack-mountable design |
| Noise Level | 75 dB |
| Operating Temperature | 5°C to 40°C |
| Network Interface | Ethernet |
| Release Date | March 2025 |
Frequently asked questions
How much power does the SealMiner A2 Pro Air use?
This 255 TH/s version is rated at 3,790 W, about 15.8 A at 240 V. Size the circuit for a continuous load of that size.
Can I plug the SealMiner A2 Pro Air into a standard US outlet?
No. It needs 220-240 V or 220-277 V AC (depending on the power supply) input, so a standard 120 V outlet will not run it. Have an electrician install a 240 V circuit rated for a continuous 3,790 W load.
How loud is the SealMiner A2 Pro Air?
It is listed at 75 dB. At that level, plan a garage, basement or dedicated room rather than a living area.
What coins can the SealMiner A2 Pro Air mine?
It mines SHA-256, so it can mine Bitcoin (BTC) and other SHA-256 coins such as Bitcoin Cash (BCH). It works with any SHA-256 pool; see mining pools explained.
Does the SealMiner A2 Pro Air come with a warranty?
Yes. This listing is for a new unit with a 30-day limited warranty from Bitminers, starting on the date of delivery. A manufacturer warranty may also apply. See our Warranty Policy.
Shipping, Payment, Warranty & Returns
- Shipping: United States only. Flat rate of $120 per order. Orders are dispatched within 5-10 business days after payment is received, and transit within the US takes 0-1 business days after dispatch. See our Shipping Policy.
- Payment: bank transfer. Our bank details are provided after you place your order. See our Payment Policy.
- Warranty: 30-day limited warranty from Bitminers, starting on the date of delivery. A manufacturer warranty may also apply. See our Warranty Policy.
- Returns: eligible items can be returned within 20 calendar days of delivery. See our Return & Refund Policy.
Related guides: Bitdeer SealMiner explained · Hashrate, TH/s and J/TH explained · ASIC miners compared by efficiency
Mining results depend on electricity costs, network difficulty and cryptocurrency prices. Bitminers does not guarantee mining profitability or return on investment.
Additional Information
| Condition | New |
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