Replacement Power Supply P4ATX & mPS3 Micro PS3 ATX PSU 400 watt Multiple BrandsReplacement Power Supply for Many different Computers. You can use the drop down menu above to select your compatible Dell part number.Specifications: Main Connector: 20+4Pin+12V Rails: SingleOver Voltage ProtectionInput Voltage: 115 / 230 VInput Frequency Range: 50/60 HzOutput: +3.3V@13A, +5V@13A, +12V1@16A, -12V@0.8A, -5V@0.5A, and +5VSB@2.5AMTBF: >100,000 HoursRise time: Less than 70msHold-up Time: 17ms Minimum at Nominal Input Voltage