Key Takeaways:
Bitdeer launched the Sealminer A4 Extremely Hydro on April 7, 2026, hitting 9.45 J/TH effectivity, among the many greatest figures within the trade. The A4 collection, powered by Bitdeer’s SEAL04 chips, improves on the A3 collection’ 12.5 J/TH, chopping energy prices for miners dealing with tight post-halving margins. BTDR shares gained roughly 2.8% on launch day, with no cargo dates or pricing disclosed but.
Sealminer A4 Extremely Hydro Delivers 886 TH/s at 9.45 J/TH for Bitcoin Miners
The Singapore-based firm launched the A4 lineup by means of its Sealminer model, the in-house ASIC division that Bitdeer makes use of to develop and produce its personal mining {hardware}. The collection runs on Bitdeer’s newest SEAL04 chips, constructed on superior course of nodes, and represents the corporate’s clearest step but towards competing immediately with established {hardware} makers like Bitmain and MicroBT.
Three fashions make up the A4 collection, every focusing on completely different deployment situations. The A4 Extremely Hydro, the flagship hydro-cooled unit, delivers 886 terahash per second (TH/s) at 8,372.7 watts with a rated effectivity of 9.45 J/TH. The A4 Professional Hydro reaches 680 TH/s at 7,412 watts at 10.9 J/TH. The A4 Professional Air, the air-cooled possibility, produces 336 TH/s at 3,662.4 watts, additionally rated at 10.9 J/TH.
Bitdeer notes that energy effectivity carries a tolerance of plus or minus 5%, and hashrate and energy consumption carry a tolerance of plus or minus 10%. The A4 Extremely Hydro’s 9.45 J/TH ranking marks a notable enchancment over Bitdeer’s earlier era. The Sealminer A3 collection, launched in September 2025, achieved between 12.5 and 14 J/TH.
Earlier A2 Professional items ran at 14.9 J/TH. Every era has moved nearer to the sub-10 J/TH threshold that Bitdeer had been focusing on on the machine degree. Decrease effectivity figures immediately cut back electrical energy prices per bitcoin mined. That issues to operators proper now. Bitcoin hashprice has remained below stress because the April 2024 halving lower block rewards from 6.25 BTC to three.125 BTC, compressing margins for miners working older, much less environment friendly {hardware}.
The hydro-cooled fashions are designed for high-density knowledge heart deployments the place warmth administration is a constraint. Each hydro items provide a low-noise profile alongside optimized thermal efficiency, which Bitdeer says helps machine stability and uptime at scale. The A4 Professional Air supplies flexibility for websites that can’t help liquid cooling infrastructure.
Bitdeer operates as a vertically built-in supplier, managing chip design, machine manufacturing, and knowledge heart operations throughout america, Norway, Bhutan, and Ethiopia. The A4 rigs are anticipated to help each exterior {hardware} gross sales and Bitdeer’s inside self-mining fleet, which the corporate has been increasing by means of successive Sealminer deployments.
BTDR shares dipped roughly 1% on the announcement day, not too in keeping with how the inventory has responded to prior {hardware} launch occasions. Bitdeer didn’t disclose pricing, pre-order particulars, or cargo timelines within the announcement. Bitdeer’s announcement web page had not but been up to date with A4 particulars on the time of reporting.
The A4 launch extends a chip improvement roadmap that Bitdeer has described as focusing on roughly 5 J/TH on the chip degree in future generations. The corporate has beforehand proven sub-10 J/TH leads to chip-level benchmarks below optimized situations, with the A4 bringing that efficiency into commercially delivered {hardware}.
Bitdeer’s vertical integration technique means it controls prices and specs throughout the total provide chain fairly than sourcing chips from third-party foundries or buying machines from rivals. That mannequin offers the corporate extra management over {hardware} output and timing, although it additionally concentrates R&D danger internally.
No manufacturing quantity targets or supply schedules had been offered alongside the announcement.
