Miner comparison
WhatsMiner M63S++ 464T vs Antminer S21 XP Hyd.
Both are hydro-cooled Bitcoin miners with almost the same hashrate. MicroBT lists the WhatsMiner M63S++ at 464 TH/s on 7,192 W (15.5 J/TH); Bitmain rates the Antminer S21 XP Hyd. at 473 TH/s on 5,676 W (12 J/TH, at 35 °C inlet coolant). The S21 XP Hyd. gives about 2% more hashrate on about 21% less power, so each terahash takes about 23% less electricity. The M63S++ power supply takes 380–480 V AC with a 10 kW input; the S21 XP Hyd. takes three-phase 380–415 V at up to 12 A. The formats differ: the M63S++ is a flat 86 × 483 × 663 mm unit with handle, weighing 29.5 kg net and needing about 1 L of coolant, while the S21 XP Hyd. measures 339 × 173 × 207 mm and weighs 13.8 kg. Neither specification page gives a noise figure. The table below and the calculator work out what these figures mean with current network data.
Figures: MicroBT and Bitmain specification pages for WhatsMiner M63S++ and Antminer S21 XP Hyd., checked 2026-10-10.
| Compare |  MicroBT WhatsMiner M63S++ 464TAvailable |  Bitmain Antminer S21 XP Hyd.Available |
|---|---|---|
| Price | ||
| Price | $4,408 | $5,889.05 |
| Price per TH/s | $9.50/TH | $12.45/TH |
| Condition | New | New |
| Specifications | ||
| Hashrate | 464 TH/s (±10%) | 473 TH/s (±3%) |
| Power consumption | 7,192 W | 5,676 W (±5%) |
| Efficiency | 15.5 J/TH | 12 J/TH |
| Algorithm | SHA-256 | SHA-256 |
| Input voltage | 380–480 V AC | 380–415 V AC |
| Electrical phase | — | Three-phase |
| Cooling type | Hydro-cooled | Hydro-cooled |
| Coolant inlet temperature | 25–55 °C | 20–50 °C |
| Coolant flow | ≥ 10 L/min | 8–10 L/min |
| Dimensions (L × W × H) | — | 339 × 173 × 207 mm |
| Net weight | 29.5 kg | 13.8 kg |
| Operating economics | ||
| Electricity cost / day at $0.06/kWh | $10.36 | $8.17 |
| Est. revenue / day | $16.47 | $16.79 |
| Est. net / day at $0.06/kWh | $6.12 | $8.62 |
| Break-even electricity price | $0.095/kWh | $0.123/kWh |
Green marks the better value in a row (higher hashrate; lower power, J/TH, noise, weight, price and electricity cost). Specifications are as recorded for each product; “—” means the value is not stated. Economics are estimates at network conditions of 2026-10-28, $0.06/kWh, 2% pool fee and 100% uptime, and are not a forecast of earnings.
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