300W MT Replacement Power Supply D300EPS-00 with 8+4+4Pin Connector Compatible with Dell Optiplex 3000MT 5000MT 7000MT, Vostro 3710 3910 T3660, XPS 8950, H300EPS-00 AC300EPS-01 P/N 3XY3J 6R2MV HD2W8

This brand-new 300W mini tower power supply model D300EPS-00 is a factory-matched replacement unit built for Dell next-gen MT desktops and workstations, including Optiplex 3000MT, 5000MT, 7000MT, Vostro 3710, 3910, T3660 and XPS 8950. It features exclusive 8pin+4pin+4pin integrated power cable, directly replaces OEM PSU variants H300EPS-00 and AC300EPS-01, and matches Dell official part numbers 3XY3J, 6R2MV, HD2W8.

Adopted 80 Plus Platinum certified industrial-grade internal components, this PSU delivers high-efficiency, low-noise and low-ripple continuous power output, reducing energy consumption while stabilizing system performance under multi-tasking, design and video editing loads. Intelligent all-round protection circuits automatically shut down power supply to prevent motherboard, CPU and storage hardware burnout when abnormal voltage, overload or overheating occurs.

Equipped with optimized silent cooling fan and internal heat sink structure, it quickly dissipates heat inside the chassis and maintains quiet operation for long-hour business use. All wiring pinouts, installation dimensions and screw positions strictly follow Dell original factory standards, requiring no wiring modification or extra adapters for fast installation. Every unit undergoes rigorous full-function aging, voltage stability and safety testing before shipment, meeting OEM reliability standards for corporate PC maintenance, workstation upgrade and faulty power supply replacement.