24-pin standard ATX connector - Compatible with 20 / 20+4 / 24 pin headers. Features a lock button for easy power ON/OFF control. High quality with 24Amp (per position) screw terminals. Indicator light clearly shows the module's status. Simple and convenient to use. Specifications: Type: ATX Power Supply Module Material: Circuit Board Weight: Approx. 50g Size: Approx. 52 * 87mm / 2 * 3.4in On/Off Button: 6 * +5V / 16A connectors, 10 * GND / 16A connectors, 1 * -5V / 16A connector (-5V voltage is not available on every PC power supply, it often disappears; if you do not provide this output, this output will not provide anything), 1 * -12V / 16A connector, 4 * +12V / 16A connectors, 3 * +3.3V / 16A connectors Package List: 1 * 24/20-Pin ATX Power Supply Module Note: 1. For the 2-pin connector, in the case of the "power connector," you want to turn the button on/off remotely (then just connect the two external buttons). This allows you to access the power button even if the adapter is installed in the arcade panel. 2. Please allow for a slight error due to manual measurement. Thank you for your kind understanding.