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Rectangular metal power supply unit with 14-pin connector

DoDo DIY

DoDo DIY PS-4281-02 280 W power supply 14pin

SKU CH-S56J-HS7HY MPN PS-4281-02

280 W power supply with a 14-pin connector for ThinkCentre M5200t, M8300t, M8320t, M8400t and M8500t systems

  • 280 W output powers ThinkCentre M5200t and M8300t systems
  • 14-pin connector matches original PS-4281-02 board layout
  • Replaces Lenovo part numbers 54Y8900 54Y8851 54Y8859 directly
  • New unit tested for 100 % working condition
  • FSP280-40EPA and HK380-16FP cross-reference confirms compatibility

Direct replacement for ThinkCentre towers

The DoDo DIY PS-4281-02 is a 280 W power supply built to fit ThinkCentre M5200t, m8300t, m8320t, m8400t and m8500t systems. It matches the original FSP280-40EPA and HK380-16FP units and carries the 54Y8900, 54Y8851 and 54Y8859 part numbers. Buyers restoring or repairing those specific desktops receive a new unit rated for 100% working condition.

Proprietary 14-pin connector simplifies installation

The supply uses a 14-pin motherboard connector rather than the common 24-pin ATX layout, so it plugs straight into the ThinkCentre board without adapters or pin rearrangements. This exact fit removes the need to source separate cables or modify the chassis wiring harness. Systems outside the listed models cannot use this connector.

280 W limit restricts component upgrades

The 280 W rating caps the total power available to the CPU, graphics card, drives and peripherals. Adding a discrete GPU, extra storage or a higher-TDP processor will likely exceed the budget and cause instability. The unit is intended for like-for-like replacement in the original office configurations, not for expanded builds.

Highlights

  • 280 W output powers ThinkCentre M5200t and M8300t systems
  • 14-pin connector matches original PS-4281-02 board layout
  • Replaces Lenovo part numbers 54Y8900 54Y8851 54Y8859 directly
  • New unit tested for 100 % working condition
  • FSP280-40EPA and HK380-16FP cross-reference confirms compatibility

Specifications

ModelPS-4281-02

Questions about this item

Will the 14-pin connector need periodic replacement on this PS-4281-02?

The 14-pin connector is a fixed part of the PS-4281-02 and is rated for the normal service life of the unit.

What limit appears first when this 280 W supply runs continuously?

The 280 W maximum output is the first limit reached under sustained full load.

How loud and hot does the PS-4281-02 get during all-day operation?

The PS-4281-02 is built to FSP280-40EPA specifications for continuous 280 W delivery within standard thermal limits.

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