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Bitdeer SealMiner A2 Pro Air 258Th – air-cooled Bitcoin ASIC miner
Bitdeer SealMiner A2 Pro Air 258Th – air-cooled Bitcoin ASIC miner

Picture of the model. The unit you receive may differ in appearance.

AvailableCondition: NewBitdeer

Bitdeer SealMiner A2 Pro Air — 258Th Bitcoin Miner

The SealMiner A2 Pro Air — 258Th is an air-cooled Bitcoin miner from Bitdeer, rated at 258 TH/s and 3,799 W (14.7 J/TH).

Hashrate
258TH/s
Power
3,799W
Efficiency
14.7J/TH
derived: power ÷ hashrate
Cooling
Air-cooled
Coins
BTC

Retail price

$3,162.55

per unit · $12.26 per TH/s

  • 1–4 units$3,162.55
  • 5+ unitsVolume pricing available
View volume pricing
1–4 units$3,162.55
5–19 unitsVolume pricing on request
20–99 unitsRequest Quote
100+ unitsContact Mining Sales
Ships in
5–10 business days
$3,162.55Free standard shipping. Excludes duties and taxes
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Manufacturer
Bitdeer
Model
SealMiner A2 Pro Air — 258Th
Algorithm
SHA-256
Condition
New
Running it at $0.06/kWh · estimateMining economicsEst. revenue / day$9.16Electricity / day$5.47Operating result / day$3.69

Product overview

The SealMiner A2 Pro Air — 258Th is an air-cooled Bitcoin miner from Bitdeer, rated at 258 TH/s and 3,799 W (14.7 J/TH).

Condition: New.

  • 258 TH/s

    Rated hashrate

  • 14.7 J/TH

    Efficiency (power ÷ hashrate)

  • Air-cooled

    Cooling method

  • 3,799 W

    Power draw at the wall

Technical specifications

Fields that are not stated are left out rather than estimated.

Performance

Hashrate258 TH/s
Power consumption3,799 W
Efficiency14.7 J/TH (derived from power ÷ hashrate)
AlgorithmSHA-256
Supported coinsBTC

Cooling

Cooling typeAir-cooled

As stated by the source

Voltage220-277v
Noise75db
Net weight15500g
Dimensions365 X 292 X 197mm
InterfaceEthernet
Operating temperature-30 – 70 °C

Mining economics

Estimate output and operating cost for the SealMiner A2 Pro Air — 258Th at your own power price. Results are calculations from the inputs shown, not a forecast.

Electricity price (USD per kWh)
units
%
%
Network difficulty, Bitcoin price and hosting
USD
$/kWh

Added to the electricity price.

Open the full calculator

Estimated results (per miner, at $0.06/kWh)

Est. revenue / day
$9.16
0.00011358 BTC mined / day
Electricity cost / day
$5.47
91.2 kWh × $0.06
Operating result / day
$3.69
Revenue less electricity
Revenue / 30 days
$274.77
Electricity / 30 days
$164.12
Operating result / 30 days
$110.65
Energy / day
91.2 kWh
Energy / 30 days
2,735 kWh
Break-even electricity
$0.100/kWh

Estimates only. Not financial advice. Results vary with network difficulty, pool fees, uptime, market conditions, the Bitcoin price and the cost of electricity. They are calculated from the inputs shown at constant difficulty and price, and leave out the cost of the hardware, cooling, downtime, taxes and depreciation.

Network data as of 2026-10-28 13:00 UTC · price: mempool.space · difficulty: mempool.space · block reward 3.1391 BTC

Electricity cost by power price

Daily and 30-day electricity cost of SealMiner A2 Pro Air — 258Th at 3,799 W, with the estimated revenue beside it.

Electricity priceElectricity / dayElectricity / 30 daysEst. revenue / dayEst. net / day
$0.03/kWh$2.74$82.06$9.16$6.42
$0.05/kWh$4.56$136.76$9.16$4.60
$0.06/kWhselected$5.47$164.12$9.16$3.69
$0.07/kWh$6.38$191.47$9.16$2.78
$0.10/kWh$9.12$273.53$9.16$0.04
$0.12/kWh$10.94$328.23$9.16-$1.78
$0.15/kWh$13.68$410.29$9.16-$4.52
$0.20/kWh$18.24$547.06$9.16-$9.08

Compare miners

How the SealMiner A2 Pro Air — 258Th compares with the closest alternatives by cooling type and efficiency.

Compare all miners
ModelHashratePowerEfficiencyCoolingPrice$/THSide by side
SealMiner A2 Pro Air — 258Th (this miner)258 TH/s3,799 W14.7 J/THAir-cooled$3,162.55$12.26
NerdQaxe++ Rev 7 4.8T4.8 TH/s69.5 W14.5 J/THAir-cooled$312.55$65.11Side by side
Antminer S21 Pro 220T220 TH/s3,300 W15 J/THAir-cooled$1,804.05$8.20Side by side
NerdQaxe++ 4.8T4.8 TH/s72 W15 J/THAir-cooled$227.05$47.30Side by side
Whatsminer M72S 264T264 TH/s4,000 W15.2 J/THAir-cooled$3,704.05$14.03Side by side

Shipping

Standard shipping is free to every destination we ship to. If you need it faster, choose express shipping at checkout and we quote it before you pay. Import duties, taxes and customs clearance are set by the destination country and are the importer's responsibility unless your quotation states otherwise.

Request Express QuoteShipping policy

SealMiner A2 Pro Air — 258Th questions

How much electricity does the SealMiner A2 Pro Air — 258Th use?

The SealMiner A2 Pro Air — 258Th draws 3,799 W at the wall. Running continuously that is about 91.2 kWh per day and 2,735 kWh per 30 days. Multiply by your electricity price to get the running cost, or use the calculator.

What is the hashrate and efficiency of the SealMiner A2 Pro Air — 258Th?

Rated hashrate is 258 TH/s at 14.7 J/TH (derived from rated power ÷ rated hashrate). Lower J/TH means less energy per unit of hashrate. See Understanding J/TH.

How is the SealMiner A2 Pro Air — 258Th cooled?

The SealMiner A2 Pro Air — 258Th is air-cooled with built-in fans. It needs a steady supply of cool intake air and a path to exhaust hot air. Compare options in Air vs hydro Bitcoin miners.

Can I order the SealMiner A2 Pro Air — 258Th in bulk?

Yes. Orders are handled by quantity: small quantities through checkout when a price is published, and larger quantities by quotation with pricing, batch and logistics confirmed by sales. Request a wholesale quote.

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SealMiner A2 Pro Air — 258Th

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