HP 320W Power Supply Unit | PS-4321-9HA / 503378-001 (4 Pin) Used This motherboard features a proprietary

This motherboard features a proprietary Lenovo design

or marks on your materials

and pin counts match the set shown in the photos

and external drive enclosures

HP 320W Power Supply Unit | PS-4321-9HA / 503378-001 (4 Pin) Used This motherboard features a proprietaryThis genuine HP 320W switching power supply unit is manufactured by Lite On Technology (Model: PS 4321 9HA, HP Part Number: 503378 001, Spare Part Number: 508154 001). Built for HP Compaq Elite and Pro series Microtower Convertible Minitower desktop systems, it provides stable, high efficiency power delivery for enterprise desktop hardware. Key Specifications: Brand: HP Lite On Technology Model: PS 4321 9HA HP Part Number (P N): 503378 001 HP Spare