BitDeer has announced a new generation of ASIC miners for Bitcoin mining called the SealMiner A4. The initial lineup includes three models: the SealMiner A4 PRO AIR, the SealMiner A4 Pro Hydro, and the SealMiner A4 Ultra Hydro. The key feature of these new devices is improved energy efficiency, starting from 9.45 J/TH, which matches the maximum achievable indicators of the market leader - Bitmain's Antminer S23 Hydro