500W Power Supply for HP 280 288 400 480 600 680 800 G3 G4 MT, Replacement for L77487-001 L89233-001 PA-5501-2HA PCG007

Aomoproing 500W power supply is a high-performance drop-in replacement for HP ProDesk and EliteDesk Micro-Tower (MT) desktops, including the 280, 288, 400, 480, 600, 680, and 800 G3/G4 series. It is fully compatible with all OEM part numbers: L77487-001, L89233-001, PA-5501-2HA, and PCG007.

Engineered to match HP's proprietary form factor and connector layout, it features the critical 7-pin motherboard connector, 4-pin CPU power, and dual 6+2-pin PCIe power connectorsessential for supporting mid-range to high-end dedicated graphics cards.

Boasting 80 PLUS Gold certification and active PFC, this PSU delivers up to 90% efficiency, reducing energy waste and heat generation for quieter, cooler 24/7 operation. The robust 500W output provides stable +12V rails to power multi-core CPUs, multiple hard drives/SSDs, and performance GPUs.

Comprehensive circuit protections (over-voltage, over-current, short-circuit, and over-temperature) safeguard your HP system and components. Every unit is rigorously load-tested to ensure consistent voltage output and long-term durability, making it the ideal choice for repairs, upgrades, or workstation builds.