Bitmain
Antminer S21+
AvailableNew
- Hashrate
- 216TH/s
- Power
- 3,564W
- Efficiency
- 16.5J/TH
- Air-cooled
- SHA-256
$1,519.05$7.03/TH
Picture of the model. The unit you receive may differ in appearance.
Bitdeer SEALMINER A2 226 TH/s Bitcoin Miner
The SEALMINER A2 is an air-cooled Bitcoin miner from Bitdeer, rated at 226 TH/s and 3,729 W (16.5 J/TH).
- Hashrate
- 226TH/s
- Power
- 3,729W
- Efficiency
- 16.5J/TH
- Cooling
- Air-cooled
- Coins
- BTC, BCH, BSV
Retail price
Price on request
Sales quotes per batch and quantity.
View volume pricingVolume pricing
| 20–99 units | Request Quote |
|---|---|
| 100+ units | Contact Mining Sales |
- Ships in
- 5–10 business days
- Manufacturer
- Bitdeer
- Model
- A2
- Algorithm
- SHA-256
- Condition
- New
Product overview
The SEALMINER A2 is an air-cooled Bitcoin miner from Bitdeer, rated at 226 TH/s and 3,729 W (16.5 J/TH).
Condition: New.
226 TH/s
Rated hashrate
16.5 J/TH
Energy per terahash
Air-cooled
Cooling method
3,729 W
Power draw at the wall
Technical specifications
Specifications as published by the manufacturer · last verified October 1, 2026 · Bitdeer documentation
Fields the manufacturer does not publish are left out rather than estimated.
Performance
| Hashrate | 226 TH/s |
|---|---|
| Power consumption | 3,729 W |
| Efficiency | 16.5 J/TH |
| Algorithm | SHA-256 |
| Supported coins | BTC, BCH, BSV |
Cooling
| Cooling type | Air-cooled |
|---|
Physical & environment
| Operating temperature | -20–50 °C |
|---|
General
| Release date | October 31, 2024 |
|---|---|
| Manufacturer warranty | 365-day warranty starting from the shipment date |
Mining economics
Estimate output and operating cost for the SEALMINER A2 at your own power price. Results are calculations from the inputs shown, not a forecast.
Estimated results (per miner, at $0.06/kWh)
- Est. revenue / day
- $8.02
- 0.00009949 BTC mined / day
- Electricity cost / day
- $5.37
- 89.5 kWh × $0.06
- Operating result / day
- $2.65
- Revenue less electricity
- Revenue / 30 days
- $240.69
- Electricity / 30 days
- $161.09
- Operating result / 30 days
- $79.59
- Energy / day
- 89.5 kWh
- Energy / 30 days
- 2,685 kWh
- Break-even electricity
- $0.090/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 at 3,729 W, with the estimated revenue beside it.
| Electricity price | Electricity / day | Electricity / 30 days | Est. revenue / day | Est. net / day |
|---|---|---|---|---|
| $0.03/kWh | $2.68 | $80.55 | $8.02 | $5.34 |
| $0.05/kWh | $4.47 | $134.24 | $8.02 | $3.55 |
| $0.06/kWhselected | $5.37 | $161.09 | $8.02 | $2.65 |
| $0.07/kWh | $6.26 | $187.94 | $8.02 | $1.76 |
| $0.10/kWh | $8.95 | $268.49 | $8.02 | -$0.93 |
| $0.12/kWh | $10.74 | $322.19 | $8.02 | -$2.72 |
| $0.15/kWh | $13.42 | $402.73 | $8.02 | -$5.40 |
| $0.20/kWh | $17.90 | $536.98 | $8.02 | -$9.88 |
Compare miners
How the SEALMINER A2 compares with the closest alternatives by cooling type and efficiency.
| Model | Hashrate | Power | Efficiency | Cooling | Price | $/TH | Side by side |
|---|---|---|---|---|---|---|---|
| SEALMINER A2 (this miner) | 226 TH/s | 3,729 W | 16.5 J/TH | Air-cooled | On request | — | |
| Antminer S21+ | 216 TH/s | 3,564 W | 16.5 J/TH | Air-cooled | $1,519.05 | $7.03 | Side by side |
| NerdOCTAxe 9.6T | 9.6 TH/s | 160 W | 16.7 J/TH | Air-cooled | $284.05 | $29.59 | Side by side |
| NerdQaxe++ Rev 6.1 6T | 6 TH/s | 100 W | 16.7 J/TH | Air-cooled | $274.55 | $45.76 | Side by side |
| LV07 Pro 3T | 3 TH/s | 50 W | 16.7 J/TH | Air-cooled | $189.05 | $63.02 | Side 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.
Documentation
Links open the manufacturer's own documentation on the manufacturer's website.
SEALMINER A2 questions
How much electricity does the SEALMINER A2 use?
The SEALMINER A2 draws 3,729 W at the wall. Running continuously that is about 89.5 kWh per day and 2,685 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?
Rated hashrate is 226 TH/s at 16.5 J/TH. Lower J/TH means less energy per unit of hashrate. See Understanding J/TH.
How is the SEALMINER A2 cooled?
The SEALMINER A2 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 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.
Similar miners
The closest alternatives by cooling type and efficiency.
NerdMiner
NerdOCTAxe 9.6T
AvailableNew- Hashrate
- 9.6TH/s
- Power
- 160W
- Efficiency
- 16.7J/TH
- Air-cooled
- SHA-256
$284.05$29.59/TH
NerdMiner
NerdQaxe++ Rev 6.1 6T
AvailableNew- Hashrate
- 6TH/s
- Power
- 100W
- Efficiency
- 16.7J/TH
- Air-cooled
- SHA-256
$274.55$45.76/TH
Lucky Miner
LV07 Pro 3T
AvailableNew- Hashrate
- 3TH/s
- Power
- 50W
- Efficiency
- 16.7J/TH
- Air-cooled
- SHA-256
$189.05$63.02/TH
Wholesale & project supply
Need the SEALMINER A2 in volume?
Send quantity, destination and required date. Sales replies with batch availability, unit pricing and freight options for your order size.
- 20+ units
- Mixed models
- Container orders
- Project procurement
SEALMINER A2
Price on request