Comes in a set of 2 pieces, supporting both 20Pin and 24Pin standard ATX power supplies for flexible compatibility.; Built-in independent 5V USB output port, convenient to charge small electronic devices directly without extra adapters.; Clearly labeled voltage terminals including 3.3V, 5V, 12V, GND, easy to access different voltage outputs for bench testing.; Blue PCB with firm terminal blocks, reliable wiring connection, no loose wires during long-term laboratory use.; Simple trigger design to turn on ATX PSU standalone, widely used for hardware debugging, electronic experiment and device power supply testing.