Output shutdown when output current reaches the highest point. Short-circuit protection: output shut down when short-circuit. function (for +3.3V, +12V, +5.00V and +5.00V SB power output). Input voltage range: 11.2 to 12.6V DC, DC input connector: 2.5mm inner diameters, 5.5mm outer diameter Before you buy this board, please make sure your input Voltage INPUT VOLTAGE RANGE: 11.4VDC-12.6VDC Rating Power: 300W The 20+4pin cable and the dc cable are included. Item name: Power Module Power: 300W Input voltage: 12V +5VSB:2A +5VDC:8A +3.3VDC:8A +12VDC:16A 12VDC:0.15A Interface:1* ATX24PIN, 1* CPU4PIN, 1* CPU4PIN for high power,1*SATA power supply, 1inch IDE big 4PIN, 1* small 4PIN 1inch DC5525 input hole Line length: DC line length: 320 mm CPU4Pin:280mm 24Pin:190mm CPU4Pin:270mm IDE190mm+SATA190mm+small4Pin115mm INPUT VOLTAGE RANGE: 11.4VDC-12.8VDC INCOMING CURRENT RANGE : 20.0A Max - 11.4VDC INPUT SURGING CURRENT: 25.0Vmax - 12VDC WORK EFFICIENCY: greater or equal to 85% Environment description: Working temperature/humidity: 15 degree to 35 degree / 45%-75% Reposition temperature//humidity: -40 degree to +70 degree/ 10%-90% Atmospheric pressure: 86Kpa-106Kp Other parameters: Working frequency: Icbuilt-in oscillator ( 250-350 ) kHz@Vcc=12V Read more Colour: as shown Material: PCB Size: 15.4x3.5x1.7cm Package Contents: 1 * 300W power module 2 * DC lines 1 * power supply line Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.