Sealminer A4 Series Debuts as Bitdeer Hits New Bitcoin Mining Efficiency Record

Bitdeer Technologies Group launched its Sealminer A4 series of bitcoin mining rigs on Tuesday, with the flagship model reaching 9.45 joules per terahash, placing it among the most power-efficient machines announced by any major manufacturer. Key Takeaways: Bitdeer launched the Sealminer A4 Ultra Hydro on April 7, 2026, hitting 9.45 J/TH efficiency, among the best […]