24PIN port: power the computer motherboard in the computer . Usually, this port is used . If your power supply is a 20PIN port or a port other than a 24PIN port, how do you plug in the cable? The socket is inserted from the origin on the circuit board. Please pay attention to the use Product parameters: Name: Power take-off board Model: -M28 Compatible port: ATX (compatible with some BTX types) Number of PINs: 24PIN Switch: Yes Number of output groups: four groups of different voltages Size: 69 x 64 x 27mm Hole spacing: 63 x 57 x 27mm Voltage description of each terminal: -12V to GND, GND is , - 12V is negative, voltage DC12V +12V to GND,+12V is , GND is negative, voltage DC12V +12V to 12V,+12V is , - 12 is negative, voltage DC24V +5V to GND,+5V is , GND is negative, voltage DC5V +3.3V to GND,+3.3V is , GND is negative, voltage DC3.3V -The 12V terminal is not recommended to carry heavy current load. It only provides a potential for the main board, usually the current is about 300ma Material: PCB+metal colour: blue Package Contents: 1 x Computer power adapter Only the above package content, other are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.