SEALMINER A4 Pro Air vs SEALMINER A3 Pro Air

Both are air-cooled Bitdeer SEALMINER models for SHA-256 (Bitcoin) mining, in the same 197 × 365 × 292 mm housing (W × D × H), at the same 15.5 kg net weight, on the same 220–277 V AC supply drawing up to 27 A. Bitdeer rates the A4 Pro Air at 336 TH/s on 3,662.4 W (10.9 J/TH) and the A3 Pro Air at 290 TH/s on 3,625 W (12.5 J/TH), both at 25 °C. The A4 Pro Air gives about 16% more hashrate for about 1% more power, so each terahash takes about 13% less electricity. Bitdeer's tables give ranges of 310–360 TH/s for the A4 Pro Air and 260–320 TH/s for the A3 Pro Air (±10%). The A4 Pro Air is specified for -20 to 50 °C operation, the A3 Pro Air for -20 to 45 °C. The table below and the calculator work out what these figures mean with current network data.

Figures: Bitdeer specification pages for SEALMINER A4 Pro Air and SEALMINER A3 Pro Air, checked 2026-10-10.