Bitmain released the latest ANTMINER water-cooled mining machine Antminer S21 Hyd. and air-cooled mining machine Antminer S21 during the 2023 Global Digital Mining Summit (WDMS 2023). S21 Hyd. has a hasharte of up to 335T and an energy efficiency ratio of only 16JT. Let's have a closer look.br Email:br sales001@apexto.com.