Dell D220p 01 Power Supply Pinout 2 Jun 2026

If you want to use this 220-watt PSU in a generic PC or as a bench supply, you have two options:

The Dell D220P-01 is an external power supply brick commonly used for the Dell OptiPlex SX280, GX620, and various small form factor (USFF) units. Understanding the pinout of its unique 8-pin rectangular connector is essential for repairs, voltage testing, or repurposing the unit for DIY electronics projects. Hardware Specifications Dell D220p 01 Power Supply Pinout 2

Because the D220P-01 is a 220W 12V source, it is highly popular in the hobbyist community for: Providing dedicated power to heated beds. HAM Radio: A clean, filtered 12V source for transceivers. LED Strips: Powering long runs of 12V RGB lighting. If you want to use this 220-watt PSU

Dell utilizes a proprietary "Dallas One-Wire" or similar ID chip in many of their power bricks. This allows the BIOS to identify the wattage of the adapter. If you are using this power supply for a non-Dell project, this pin is generally left disconnected. However, if the unit refuses to stay on, it may be looking for a specific resistance between the ID pin and Ground. Safety and Testing Procedures HAM Radio: A clean, filtered 12V source for transceivers