Welcome to our store! 1, 24 AND 20 PIN: The ATX DC power supply breakout board module is a 24 and 20 pin standard power supply board, compatible with 20, 20+4 and 24 pin wiring boxes, easy to use. 2、LED INDICATORS: The computer power supply adapter module has individual LED indicators for each channel, for clear indication of module status, standby and power on. 3、ONE-TIME LOCKING: The power supply can be easily controlled on and off with a locking push button switch, providing access to the power button even if the adapter is located in the arcade panel. 4、ON AND OFF BUTTON: The PC power adapter board has 6 x +5V 16A contacts, 10 x GND 16A contacts, 1 x 5V 16A contact, 1 x 12V 16A contact, 4 x +12V 16A contacts, 3 x +3.3V 16A type contacts. 5、SAFE TO USE: The ATX power supply tray is shipped after strict quality control and can be used with confidence. 24 Amp (per position) screw terminal. Item Type: ATX DC Power Supply Breakout Board Module Material: PCB Features: Switch button 6 x +5V 16A contacts 10 x GND 16A contacts 1 x -5V 16A contact (-5V is not available on all computers and tends to disappear if you do not provide this output, this output will not provide anything) 1 x ‑12V 16A contact 4 x +12V 16A contacts 3 x +3.3V 16A contacts 2 contacts "power contact" in If you want to remotely activate or turn off the button (then simply connect the external button to both connections). In this way, the power button can be accessed even if the adapter is in the arcade panel. 1 x 24-pin ATX connector is backward compatible with 20-pin ATX Product Size: Approx. 52x87 mm / 2.0x3.4in 1 x Power Supply Breakout Board Module Customers are our top priority. If you find any problems with your product after receiving it, such as damage or incorrect quantity, please contact us immediately. We strive to provide you with the best after-sales service.