Bitdeer SEALMINER A3 Air official specifications and infrastructure boundary

SEALMINER A3 Air official performance contract

• Comparison nominal/bin: 260 TH/s at 3640 W
• Manufacturer efficiency: 14 J/TH
• Published hashrate range: 240–280 TH/s
• Published power range: 3360–3920 W

Exact nominal plus manufacturer launch range; preserve published endpoints rather than recomputing them.

SHA-256 and the manufacturer-listed BTC, BCH and BSV workload labels are retained. They are not profitability or current network guarantees.

Air-cooling and facility boundary

This is a distinct air-cooled product. Exact facility voltage, frequency, phase, current, connector, cord and protection requirements were not established by the reviewed product text.

Acoustic, physical and firmware boundary

Manufacturer language such as low-noise or near-silent is qualitative. No absolute dBA test protocol is published, so the former 50/75 dB values are withheld. Whole-miner dimensions, weights and environment fields are withheld where accessible first-party text did not authenticate them.

Firmware is exact-model and revision gated. Do not cross-flash Air/Hydro, base/Pro or A2/A3 artifacts. A2 Air Single Input and Double Input packages are distinct. A future CTA requires exact selector, controller/board match, version, checksum and rollback instructions.

Current revenue, profit, MSRP, BTU and home-suitability claims are unavailable.

Exact physical, electrical and environmental table

• Miner dimensions: 197 x 365 x 292 mm; net weight: 15.5 kg
• Package: 308 x 482 x 423 mm; gross weight: 17.5 kg
• Input contract: {"voltage":"220-277 VAC","max_psu_input_w":4400,"max_current_a":27,"frequency":"50/60 Hz","connector":"PA45-4P-S","phase":null}
• Environment/cooling contract: {"operating_c":"-20 to 45","storage_c":"-30 to 70","rh":"10-90% noncondensing","altitude_m_max":2000}

Maximum PSU input and current are equipment-table limits, not branch-circuit designs. Connector, phase or protective-device fields remain unresolved wherever the manufacturer table is silent.