Bitmain
Antminer U3S23H
- Hashrate
- 1160TH/s
- Power
- 11,020W
- Efficiency
- 9.5J/TH
- Hydro-cooled
- SHA-256
$14,724.05$12.69/TH

Picture of the model. The unit you receive may differ in appearance.
The SEALMINER A4 Ultra Hydro is a hydro-cooled Bitcoin miner from Bitdeer, rated at 886 TH/s and 8,372.7 W (9.4 J/TH). It runs on 380–480 V three-phase power.
$9,499.05
per unit · $10.72 per TH/s
| 1–4 units | $9,499.05 |
|---|---|
| 5–19 units | Volume pricing on request |
| 20–99 units | Request Quote |
| 100+ units | Contact Mining Sales |
The SEALMINER A4 Ultra Hydro is a hydro-cooled Bitcoin miner from Bitdeer, rated at 886 TH/s and 8,372.7 W (9.4 J/TH). It runs on 380–480 V three-phase power.
Condition: New.
886 TH/s
Rated hashrate
9.4 J/TH
Energy per terahash
Hydro-cooled
Cooling method
8,372.7 W
Power draw at the wall
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.
| Hashrate | 886 TH/s (±10%) |
|---|---|
| Power consumption | 8,372.7 W (±10%) |
| Efficiency | 9.4 J/TH |
| Algorithm | SHA-256 |
| Supported coins | BTC, BCH, BSV |
| Input voltage | 380–480 V AC |
|---|---|
| Electrical phase | Three-phase |
| Cooling type | Hydro-cooled |
|---|
| Dimensions (L × W × H) | 665 × 482 × 86 mm |
|---|
| Release date | April 7, 2026 |
|---|---|
| Manufacturer warranty | 365-day warranty starting from the shipment date |
Estimate output and operating cost for the SEALMINER A4 Ultra Hydro at your own power price. Results are calculations from the inputs shown, not a forecast.
Estimated results (per miner, at $0.06/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 12:00 UTC · price: mempool.space · difficulty: mempool.space · block reward 3.1394 BTC
Daily and 30-day electricity cost of SEALMINER A4 Ultra Hydro at 8,373 W, with the estimated revenue beside it.
| Electricity price | Electricity / day | Electricity / 30 days | Est. revenue / day | Est. net / day |
|---|---|---|---|---|
| $0.03/kWh | $6.03 | $180.85 | $31.70 | $25.67 |
| $0.05/kWh | $10.05 | $301.42 | $31.70 | $21.65 |
| $0.06/kWhselected | $12.06 | $361.70 | $31.70 | $19.64 |
| $0.07/kWh | $14.07 | $421.98 | $31.70 | $17.63 |
| $0.10/kWh | $20.09 | $602.83 | $31.70 | $11.60 |
| $0.12/kWh | $24.11 | $723.40 | $31.70 | $7.58 |
| $0.15/kWh | $30.14 | $904.25 | $31.70 | $1.55 |
| $0.20/kWh | $40.19 | $1,205.67 | $31.70 | -$8.49 |
How the SEALMINER A4 Ultra Hydro compares with the closest alternatives by cooling type and efficiency.
| Model | Hashrate | Power | Efficiency | Cooling | Price | $/TH | Side by side |
|---|---|---|---|---|---|---|---|
| SEALMINER A4 Ultra Hydro (this miner) | 886 TH/s | 8,372.7 W | 9.4 J/TH | Hydro-cooled | $9,499.05 | $10.72 | |
| Antminer U3S23H | 1160 TH/s | 11,020 W | 9.5 J/TH | Hydro-cooled | $14,724.05 | $12.69 | Side by side |
| Antminer S23e U2H | 865 TH/s | 8,650 W | 10 J/TH | Hydro-cooled | $9,024.05 | $10.43 | Side by side |
| SEALMINER A4 Pro Hydro | 680 TH/s | 7,412 W | 10.9 J/TH | Hydro-cooled | $8,264.05 | $12.15 | Side by side |
| Antminer U3S21EXPH | 860 TH/s | 11,180 W | 13 J/TH | Hydro-cooled | $7,124.05 | $8.28 | Side by side |
Written comparisons: S23 XP Hyd. vs A4 Ultra Hydro
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.
Links open the manufacturer's own documentation on the manufacturer's website.
The SEALMINER A4 Ultra Hydro draws 8,372.7 W at the wall (±10%). Running continuously that is about 200.9 kWh per day and 6,028 kWh per 30 days. Multiply by your electricity price to get the running cost, or use the calculator.
Rated hashrate is 886 TH/s (±10%) at 9.4 J/TH. Lower J/TH means less energy per unit of hashrate. See Understanding J/TH.
Input voltage is 380–480 V AC, three-phase. It cannot run on a 110–120 V household circuit. Confirm your supply, breaker and cabling with a qualified electrician before ordering. See Bitcoin miner power requirements.
The SEALMINER A4 Ultra Hydro is hydro-cooled: heat is removed by liquid circulating through cold plates, so it needs an external cooling loop (pump, heat exchanger or dry cooler) and cannot run on fans alone. Compare options in Air vs hydro Bitcoin miners.
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.
The closest alternatives by cooling type and efficiency.
Bitmain
$14,724.05$12.69/TH
Bitmain
$9,024.05$10.43/TH
Bitdeer
$8,264.05$12.15/TH
Bitmain
$7,124.05$8.28/TH

Wholesale & project supply
Send quantity, destination and required date. Sales replies with batch availability, unit pricing and freight options for your order size.
SEALMINER A4 Ultra Hydro
$9,499.05