Specifications Manufacturer Bitmain Model Antminer S21 PRO(234Th) Also known as Antminer S21 PRO 234T Release February 2024 Size 400 x 195 x 290mm Noise level 75db Fan(s) 2 Power 3510W Voltage 12 Interface Ethernet Temperature 5 – 40 °C Humidity 5 – 95 %