These products are an additional add-on item for use with the PC Watchdog timers. They are used for adding a reset header (2 Pin) to PCs that do not have a reset header on the motherboard.
The ATX-20 & ATX-24 Reset Adapters are for industry standard PCs. They are ATX power cable extensions with a small circuit board attached that is enclosed in protective insulated plastic cover. A small portion of this board is exposed to allow access to a 2 pin header which connects to the reset header of our PC Watchdog timer products. It allows a PC to be reset by momentarily removing the Power Good signal from the power supply to the motherboard.
The adapters can also be used by themselves to reset a PC if your cabinet has a reset switch, but the motherboard does not have a reset header.