Bitmain Antminer S21 Pro (234Th) is an ASIC miner designed for SHA-256 algorithm, specifically targeting BTC (Bitcoin) mining. It delivers a maximum hashrate of 234Th/s while consuming 3531W of power, resulting in an energy efficiency of 15.09j/Th. Telegram 24hrs : @Guangdongtechie Manufacturer Bitmain Model Antminer S21 Pro (234Th) Also known as Antminer S21 Pro Size 400 x 195 x 290mm Noise level 75db Fan(s) 2 Power 3531W Interface Ethernet Temperature 5 - 45 °C Humidity 5 - 95 % Dispatch Company : Guangdong Elect Tech Co., Ltd Location : Guangdong , China Full 1 year Warranty + 6 months return Policy MOQ - 1pc + Free Shipping - Receipt + PSU Included Test Video - Available / SN CODE For More information / 24 hours response : Viber Chat : +39 351 141 7833 Telegram : @Guangdongtechie