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 228 TH/s Bitcoin Miner
The SealMiner A2 228T is an air-cooled Bitcoin miner from Bitdeer, rated at 228 TH/s and 3,730 W (16.4 J/TH).
- Hashrate
- 228TH/s
- Power
- 3,730W
- Efficiency
- 16.4J/TH
- derived: power ÷ hashrate
- Cooling
- Air-cooled
- Coins
- BTC
Retail price
$3,561.55
per unit · $15.62 per TH/s
- 1–4 units$3,561.55
- 5+ unitsVolume pricing available
View volume pricingVolume pricing
| 1–4 units | $3,561.55 |
|---|---|
| 5–19 units | Volume pricing on request |
| 20–99 units | Request Quote |
| 100+ units | Contact Mining Sales |
- Ships in
- 5–10 business days
$3,561.55Free standard shipping. Excludes duties and taxes
- Manufacturer
- Bitdeer
- Model
- SealMiner A2 228T
- Algorithm
- SHA-256
- Condition
- New
Product overview
The SealMiner A2 228T is an air-cooled Bitcoin miner from Bitdeer, rated at 228 TH/s and 3,730 W (16.4 J/TH).
Condition: New.
228 TH/s
Rated hashrate
16.4 J/TH
Efficiency (power ÷ hashrate)
Air-cooled
Cooling method
3,730 W
Power draw at the wall
Technical specifications
Fields that are not stated are left out rather than estimated.
Performance
| Hashrate | 228 TH/s |
|---|---|
| Power consumption | 3,730 W |
| Efficiency | 16.4 J/TH (derived from power ÷ hashrate) |
| Algorithm | SHA-256 |
| Supported coins | BTC |
Cooling
| Cooling type | Air-cooled |
|---|
As stated by the source
| Voltage | 12v |
|---|---|
| Noise | 34db |
| Net weight | 15500g |
| Dimensions | 400 X 195 X 290mm |
| Interface | Ethernet |
| Operating temperature | -20 – 50 °C |
Mining economics
Estimate output and operating cost for the SealMiner A2 228T 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
- $8.09
- 0.00010037 BTC mined / day
- Electricity cost / day
- $5.37
- 89.5 kWh × $0.06
- Operating result / day
- $2.72
- Revenue less electricity
- Revenue / 30 days
- $242.82
- Electricity / 30 days
- $161.14
- Operating result / 30 days
- $81.68
- Energy / day
- 89.5 kWh
- Energy / 30 days
- 2,686 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 228T at 3,730 W, with the estimated revenue beside it.
| Electricity price | Electricity / day | Electricity / 30 days | Est. revenue / day | Est. net / day |
|---|---|---|---|---|
| $0.03/kWh | $2.69 | $80.57 | $8.09 | $5.41 |
| $0.05/kWh | $4.48 | $134.28 | $8.09 | $3.62 |
| $0.06/kWhselected | $5.37 | $161.14 | $8.09 | $2.72 |
| $0.07/kWh | $6.27 | $187.99 | $8.09 | $1.83 |
| $0.10/kWh | $8.95 | $268.56 | $8.09 | -$0.86 |
| $0.12/kWh | $10.74 | $322.27 | $8.09 | -$2.65 |
| $0.15/kWh | $13.43 | $402.84 | $8.09 | -$5.33 |
| $0.20/kWh | $17.90 | $537.12 | $8.09 | -$9.81 |
Compare miners
How the SealMiner A2 228T compares with the closest alternatives by cooling type and efficiency.
| Model | Hashrate | Power | Efficiency | Cooling | Price | $/TH | Side by side |
|---|---|---|---|---|---|---|---|
| SealMiner A2 228T (this miner) | 228 TH/s | 3,730 W | 16.4 J/TH | Air-cooled | $3,561.55 | $15.62 | |
| 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.
SealMiner A2 228T questions
How much electricity does the SealMiner A2 228T use?
The SealMiner A2 228T draws 3,730 W at the wall. Running continuously that is about 89.5 kWh per day and 2,686 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 228T?
Rated hashrate is 228 TH/s at 16.4 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 228T cooled?
The SealMiner A2 228T 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 228T 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 228T 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 228T
$3,561.55