IMPORTANT Brand New BITMAIN Antminer units come with warranty coverage provided by BITMAIN. We are not responsible for the warranty; therefore, customers are required to proactively contact BITMAIN's official website, where dedicated personnel will assist you. The power cord was NOT INCLUDED in the package originally. Please use 380-415V Voltage; wrong input voltage may probably cause miner damage. Working liquid MUST use deionized water/pure water to avoid less efficincy, not working, and extend the lifecycle. Specifications Product Glance Model S21 Hyd. Algorithm | Cryptocurrency SHA256 | BTC/BCH/BSV Hashrate, TH/s 335 TH/S ± 3% Power on wall @95°F(35°C), Watt 5360 W ± 5% Power efficiency on wall @95°F(35°C), J/TH 16 J/TH ± 5% Detailed Characteristics Power Supply Power supply AC Input voltage, Volt 380415 V Power supply AC Input Frequency Range, Hz 5060 Hz Power supply AC Input current, Amp 12 Hardware Configuration Networking connection mode Ethernet 10/100M Miner Size (Length*Width*Height, w/o package) 13.35 x 6.42 x 8.15 inches Miner Size (Length*Width*Height, with package) 22.45 x 12.45 x 16.93 inches Net weight 27.12 lbs Gross weight 29.99 lbs Environment Requirements Inlet water temperature, °F NEM: Normal Energy Mode NEM 95 HEM: High Energy Mode HEM1 113 HEM2 122 Water flow, L/min 8.010.0 Water pressure bar ≤3.5 Working fluid Deionized water/Pure water Liquid PH 8.59.5 Diameter of water pipe connector, mm DN10 Storage temperature,°F -4158 °F Operation humidity(non-condensing) , RH 1090%