AT P10 6-Pin 3.3V AUX Power Connector

The AT P10 connector provides auxiliary 3.3V power to motherboards or expansion cards that require additional current beyond standard ATX connectors. It is typically used in older workstations and servers, including certain Sun Ultra systems.

Pinout:

Pin	Signal	Description
1	GND	Chassis ground
2	GND	Chassis ground
3	SEN_COM	Sense common
4	SEN_+3.3V	Sense 3.3V VDC
5	+3.3V	3.3V power
6	+3.3V	3.3V power

Connector Diagram:

The connector uses a 6-pin keyed housing, often seen on server-class PSUs. Pins 5 and 6 provide the main 3.3V supply, while pins 3 and 4 are used for voltage sensing to maintain regulation at the load over the cable loss.