Features:24-pin standard ATX connector - Compatible with 20 / 20 + 4 / 24 pin headers.With the lock button switch to easily control power ON / OFF.High quality - 24Amp (per position) screw terminal block.Easy and convenient to use.Indicator to clearly show the status of the module.Specification:Type: ATX Power Supply ModuleMaterial: Circuit BoardWeight: Approx. 50gSize: Approx. 52 * 87mm / 2 * 3.4inOn/Off Button:Package list:1 * 24/20Pin ATX Power Supply ModuleNote:1. 2 connector, in the case of the "power connector", want to turn on/off the button remotely (then just connect the two external buttons). This allows you to access the power button even if the adapter is in the arcade panel.2. Please allow slight error due to manual measurement. Thanks for your kind understanding.