Power Supply Pinout 2 — Dell D220p 01

This pin is typically used for "Power Good" signaling or sensing by the Dell motherboard. In most DIY scenarios, it remains unused. Technical Specifications

These are the +12V DC output rails. They provide the main power to your device. Dell D220p 01 Power Supply Pinout 2

These are the GND (Ground) pins, completing the circuit for the 12V rails. This pin is typically used for "Power Good"