255W Power Supply H255ES-00 YH9D7 Replacement PSU Compatible with Dell Optiplex 3020 7020 9020 Precision T1700 SFF, Replaces R7PPW 3XRJ0 V9MVK FP16X T4GWM M9GW7 FN3MN D255AS-00 F255ES-00

This 255W replacement power supply unit is engineered for Dell small form factor (SFF) workstations and desktops, fully matching Optiplex 3020, 7020, 9020 and Precision T1700 systems. It serves as a direct substitute for multiple original OEM part numbers including H255ES-00, YH9D7, R7PPW, 3XRJ0, V9MVK, FP16X, T4GWM, M9GW7, FN3MN, D255AS-00 and F255ES-00. The power supply retains the original physical dimensions, mounting positions and internal connector layout, enabling hassle-free plug-and-play installation with no extra adapters or wiring adjustments required. Equipped with efficient circuit modules and a quiet cooling fan, it delivers consistent stable 255W power output for daily office and light computing tasks. Integrated comprehensive safety shields effectively guard your motherboard and hardware against voltage surges, excessive current, overload and short-circuit faults. Each unit undergoes strict full-load aging inspection before shipment, making it a reliable repair replacement for faulty Dell SFF power supplies.