Bitdeer SEALMINER A3 Series

What the generation covers

Bitdeer's annual report says the A3 series includes four models with machine-level efficiency from 12.5 to 14 J/TH and hash rates from 260 to 660 TH/s. Two air-cooled models are listed here, both for SHA-256 mining (BTC/BCH/BSV): the SEALMINER A3 Air at 260 TH/s on 3,640 W (14 J/TH) and the A3 Pro Air at 290 TH/s on 3,625 W (12.5 J/TH). Bitdeer's shop also shows an A3 Pro Hydro at 660 TH/s and 12.5 J/TH.

How the versions differ

The A3 Pro Air gives about 12% more hashrate than the A3 Air (290 vs 260 TH/s) on slightly less power (3,625 vs 3,640 W), so each terahash takes about 11% less energy (12.5 vs 14 J/TH). Against the A2 Pro Air's 14.9 J/TH, the A3 Pro Air uses about 16% less energy per terahash.

Announcement

Bitdeer tested the SEAL03 chip in March 2025, and the A3 series entered mass production and deployment in the second half of 2025.

Choosing within the SEALMINER A3 generation

Models in one generation share a chip platform but differ in cooling type, hashrate and efficiency. Start with the cooling type your site supports, then compare efficiency and power draw between the versions listed above. Use the compare checkboxes to put two to four models side by side.