SHA-256 · hydro-cooled
The most efficient machine in this set at 12 W/TH, and the highest break-even electricity price as a result. Hydro cooling means it needs a water loop, so it is a hosted-site or purpose-built-facility machine rather than a garage one.
Operating profit
$6.55
per day · 0.000233 BTC
Break-even electricity
$0.108
per kWh · $0.048 above your rate
Payback period
—
Enter a hardware cost to estimate payback
Revenue assumes a 1% pool fee at the current BTC price and network difficulty, with the machine running continuously. Payback needs a hardware cost, which we do not publish because we have no verified retailer feed — add your own purchase price in the calculator. Your rate is saved in this browser and applies across the site.
| Manufacturer | Bitmain |
|---|---|
| Model | Antminer S21 XP Hyd |
| Algorithm | SHA-256 |
| Coins | Bitcoin |
| Hashrate | 473 TH/s |
| Power | 5,676 W |
| Efficiency | 12.0 W/TH |
| Cooling | Hydro |
| Type | ASIC |
| Released | 2024 |
| Home suitable | No — noise and power draw |
Data provenance
Manufacturer figures, corroborated against published reviews. Last verified 2026-07-31.
Noise, dimensions, weight and warranty are not listed because we have not verified them for this machine. We would rather leave a field empty than publish a figure you cannot check.
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