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Rectangular metal server power supply unit with 14-pin and 4-pin connectors, silver finish

WMtec

WMtec 180W Server Power Supply 14Pin 4Pin PS-3181-03

SKU CH-H5RB-V990G

Replacement 180 W server power supply with 14-pin and 4-pin connectors for compatible Lenovo desktops

  • 180W output powers compatible Lenovo desktops
  • 14-pin and 4-pin connectors match PS-3181-03 layout
  • Supports H530 M8400T TS230 and listed ThinkCentre models
  • Fits Qitian M4200f M4450 M4500 B4550 M6400 series
  • Replaces HK380-16FP and HK280-23FP part numbers

Compatible Server Power Supply

This 180W unit replaces the PS-3181-03 module in Lenovo ThinkCentre TS140, TS230, TS240, TS540, M8400t, M8500t and M6400 desktops. It also fits Dream F5055, D5050, D5055 and Yangtian M2610n, M4900c, T4900c systems. The 14-pin and 4-pin connectors match the original chassis wiring.

For Direct Replacement Builds

The supply suits IT teams restoring the listed Lenovo and Yangtian workstations to factory power specifications. It does not suit builders assembling custom ATX rigs, servers needing redundant hot-swap units, or chassis requiring a 24-pin main connector and standard peripheral leads.

Steady-State Delivery

Rated at 180 watts continuous, the switching design maintains stable output during extended compute loads typical of office and point-of-sale workloads. Thermal behaviour follows the original Lenovo cooling path, so acoustic profile and case airflow remain unchanged from the OEM unit.

How it compares

Measured against everything we stock in Server & Hot-Plug PSUs, at today’s prices. Recalculated every night.

Price $127.99
Typical for this category: the median of 3,798 items is $131.99.

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Specifications

No published specifications for this item yet.

Questions about this item

Which Lenovo desktop models use the 14-pin PS-3181-03 power supply?

This 180W unit fits the ThinkCentre M6400, M8400t, M8500t, TS140, TS240 and TS540 towers.

Will the 14-pin and 4-pin connectors attach to a Lenovo H530 or M8400T motherboard?

Yes, the 14-pin and 4-pin plugs match the H530, M8400T and TS230 chassis exactly.

How can I confirm the PS-3181-03 is delivering power after installation?

The system should boot normally and the front-panel power LED will stay solid.

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