280W Power Supply for Dell Optiplex 320 GX520 GX620, Replacement for L280P-00 X9072 PS-5281-3DFS 1Pack

Aomoproing 280W power supply is a direct drop-in replacement for the original Dell units in Optiplex 320, GX520, GX620, 210L, 740, 745, and 755 desktop and mini-tower systems. It is engineered to match the exact form factor, connector layout, and electrical specifications of OEM part numbers L280P-00, X9072, and PS-5281-3DFS, ensuring a seamless, plug-and-play installation.

It provides a stable 280-watt power output with a universal 100-240V AC input (47-63Hz), making it suitable for use worldwide. The power supply features the standard 24-pin ATX main connector and 4-pin +12V CPU connector, along with Molex and SATA connectors to support all legacy and modern internal drives found in these Dell systems.

Constructed with high-quality components, this unit includes comprehensive safety features: Over-Voltage Protection (OVP), Over-Current Protection (OCP), and Short-Circuit Protection (SCP) to safeguard your motherboard, processor, and storage devices. Each power supply is rigorously tested under full load to ensure stable performance, low noise operation, and long-term reliability for everyday office and business computing tasks.