mining
Bitmain Antminer S21 Pro (234 TH/s, air-cooled)

Image: Bitmain.
You buy this direct from the makerWe design the room around it; we don't resell miners or computers.
| Dimensions | 8.62″ W × 11.54″ H × 17.72″ D |
|---|---|
| Weight | 44.1 lb |
| Algorithm | SHA-256 |
| Hash rate | 234 TH/s |
| Electrical | volts: 220-277 V AC, 50-60 Hz, single phase · amps: 20 · watts: 3510 · plug: Bitmain P14 inlet; ships with a C20-P13 cord, so it plugs into a C19 PDU outlet |
| Airflow / capacity | Heat out about 11,976 BTU/h (3,510 W x 3.412). Airflow not listed on the spec page. |
| Noise | 76 dB |
| Where it goes in UNIT5.xyz | Shelf/rack at the back wall, intake facing the interior or a filtered intake louver, exhaust ducted or pointed straight out a wall exhaust/shutter fan; keep it below the door coil zone (nothing over ~70 in at the front). Needs the high-airflow exhaust package. |
| Warranty | 365 days from shipping when bought direct from Bitmain |
| Checked | 2026-11-02 |