Bitdeer SEALMINER A4 Ultra Hydro
- Hashrate
- 886 TH/s
- Power
- 8,373 W
- Efficiency
- 9.5 J/TH
- Noise
- —
Industrial Industrial (hydro) Rack / shelf Pre-order
A 2U, 19-inch rack-mount hydro server rated 865 TH/s at 10 J/TH and 8.65 kW. It accepts a wide 342–528 V three-phase input and quick-disconnect coolant fittings, and is designed for Bitmain’s ANTSPACE HW7 liquid-cooled containers.
Best price $11,199
$12.95 per TH · New · Pre-order at Altair Technology
| Store | Trustpilot | Condition | Availability | Listed price | In your currency | Per TH | Checked | Link |
|---|---|---|---|---|---|---|---|---|
| Altair Technology Ships from Hong Kong SAR China | TrustScore 4.7 out of 5, 623 reviews | New | Pre-order | $11,199 | $11,199 | $12.95 | 12 Nov 2026 | Visit |
| Mineshop Ships from European Union | TrustScore 4.7 out of 5, 1,610 reviews | New | Out of stock | €9,541 excl. tax | $10,616 | $12.27 | 12 Nov 2026 | Visit |
| Bitmain Official Shop Maker's own shop Store notes | TrustScore 1.4 out of 5, 98 reviews | New | Out of stock | $19,030 excl. tax | $19,030 | $22.00 | 4 Nov 2026 | Visit |
Prices as listed on each store's page on the date shown, without shipping. Prices marked excl. tax leave out VAT or sales tax, and others may too. Per TH uses the hashrate of the unit each store sells. Converted at ECB rates of 11 Nov 2026. Trustpilot scores are for the store, not the device. Each store's name opens its page, with everything it sells and its reviews.
The maker gives no hashrate for this mode, so we can't work out its mining income.
*What a pool would pay on average at today's difficulty, block reward and bitcoin price, before pool fees. Solo miners usually earn nothing, and very rarely a whole block. A plain electric heater turns the same electricity into the same heat, so the mining income is what makes the difference.
Payback is how long the bitcoin a device earns takes to add up to its price. It leaves out electricity, which buys the heat: compare earnings per kWh with your electricity price to see whether mining alone covers it. It uses the average of the last 3 months, to 12 Nov 2026: bitcoin at $79,558, 969 EH/s on the network and 3.15 BTC a block, less a 2% pool fee, for the hours you set. It cuts the block subsidy in half at each halving, the next around Apr 2028, and otherwise assumes those carry on unchanged, which they won't. Income at today's difficulty and price is about 17% below that average. Hashrate usually rises, though miners that stop paying after a halving may switch off, which leaves more for the rest. How we work it out.
| Brand | Bitmain |
|---|---|
| Model | Antminer S23e U2H |
| SKU | 865T-10 |
| Type | Industrial (hydro) · Industrial |
| Form factor | Rack / shelf |
| Cooling | Water (hydro) |
| Production status | Pre-order |
| Launch date | Apr 2026 * |
| Hashrate | 865 TH/s |
| Power consumption (stock) | 8,650 W |
| Mining efficiency | 10 J/TH |
| ASIC chip | Bitmain chip, part number not published |
| Heat output | 29,515 BTU/h |
| Input voltage | 342–528 V AC, three-phase (rated 380–480 V) |
| Frequency | 50–60 Hz |
| Net dimensions (W × D × H) | 483 × 600 × 86 mm (19 × 23.6 × 3.4 in) |
| Net weight | 29.2 kg (64.4 lb) |
| Noise | — |
| Operating temperature | — |
| Area heated | About 58–173 m² (our estimate) |
| Colours | — |
| Company based in | China |
| Made in | — |
* Not confirmed by the maker's own documents yet.
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Not yet confirmed from the maker's own documents: launch date; colours; where it's made; noise; operating temperature.
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