


SEALMINER A2 Pro Air 258 TH/s
SKU: BITDEER-SEALMINER-A2PRO-AIR-258T
Other hashrate: 255 TH/s
- Hashrate258 TH/s
- Power3844 W
- Efficiency14.9 J/TH
- AlgorithmSHA-256
- CoinBTC
€3,398.87
(excl.VAT)Guaranteed Safe Checkout
![]()
About 11 days delivery
Order confirmed within 24hTracked deliveryTo all 27 EU countries
Warranty & supportAfter-sales help
Card, bank, cryptoSecure checkout
Calculate profitability
EstimateMiner revenue varies with coin mining difficulty
- Profit / day
- +€2.63
- Profit over 200 days
- Break-even electricity price
- €0.079/kWh
- Pays for itself in
- ≈ 3.5 years≈ 4.3 years
Live daily miner revenue €7.25 Power cost / day €4.61
Revenue and profit per day
- Revenue
- Profit at €0.05/kWh
Estimate for 258 TH/s at today’s Bitcoin difficulty, block reward and BTC price (mempool.space, CoinGecko; updated 2026-11-12 12:55 UTC), before pool fees. Power cost = watts × 24 h × your price per kWh.
Description for: SEALMINER A2 Pro Air 258 TH/s
SEALMINER A2 Pro Air – 258 TH/s
An air-cooled Bitcoin ASIC miner using the SHA-256 algorithm. This variant delivers 258 TH/s at 14.9 J/TH.
Technical specifications
| Algorithm | SHA-256 |
|---|---|
| Hashrate | 258 TH/s |
| Energy efficiency | 14.9 J/TH |
| Estimated power | ≈ 3844.2 W (258 × 14.9) |
| Cooling | Air |
Estimated power is calculated as 258 TH/s × 14.9 J/TH = approximately 3,844.2 W. Actual consumption may vary.
Frequently asked questions
Q1: What algorithm does it use?
SHA-256, used for Bitcoin mining.
Q2: How is power calculated?
258 TH/s multiplied by 14.9 J/TH gives approximately 3,844.2 W.
Q3: What affects profitability?
Electricity prices, network difficulty and the Bitcoin price are among the factors.
Warranty
12-month warranty. Statutory consumer rights remain unaffected.
Specifications: SEALMINER A2 Pro Air 258 TH/s
Coin
BTC
Consumption
Hashrate
Efficiency
ModelA2 Pro
CoinBTC
Hashrate258Th/s
Sizes197x365x292mm
Consume, kWh3844w
Energy Efficiency14.9j/Ths
Fans4
Voltage220–277V
InterfaceRJ45 Ethernet 10/100M
Temperature0-40c
Warranty12 months
Warranty
Terms of Sale
Shipping Information




