Corsair CMPSU-430CXV2 ATX12V EPS12V Power Supply - Builder CX430 80% Efficiency 430 W Internal 110 V AC, 220 V AC (CMPSU-430CXV2) The Builder Series CX430 V2 is the ideal choice for PC builders and upgraders who need a great value, quiet and energy efficient PSU for a low/medium specification home or office PC.