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Rectangular silver server power supply unit, 17.5 by 8.5 by 6.5 centimetres

WMtec

WMtec 240W server power supply PC9053 PS-5241-02 HK340-71FP

SKU CH-AMNT-29F89

240-watt server power supply compatible with M77, M70E, M71, M75E, M81 and M91P systems, replacing part numbers 54Y8819 and 54Y8846

  • Delivers 240W to keep M77, M70E, M71, M75E, M81, M91P systems running
  • Accepts 100-127V or 200-240V input for worldwide rack deployment
  • Replaces part numbers 54Y8819 and 54Y8846 for direct swap
  • Compact 17.5 x 8.5 x 6.5 cm form factor fits dense chassis
  • Operates at 50-60 Hz for stable power in any region

Built for Lenovo M-series desktops

This 240 watt server power supply replaces Lenovo part numbers 54Y8819 and 54Y8846. It fits the M77, M70E, M71, M75E, M81 and M91P chassis using the PC9053, PS-5241-02 or HK340-71FP model codes. The unit accepts 100 to 127 volt or 200 to 240 volt mains at 50 to 60 hertz.

Sustained 240 watt delivery

Rated for a continuous 240 watt output, the supply maintains stable rails during long work sessions. The wide-range input handles 100 to 127 volts at 8 amps or 200 to 240 volts at 4 amps without manual switching. Steel enclosure and forced-air cooling keep temperatures controlled inside the 17.5 by 8.5 by 6.5 centimetre housing.

Direct swap installation

The proprietary connector and mounting tabs align with the original Lenovo bracket so no adapter cables are required. Verify the part number on the old unit matches 54Y8819 or 54Y8846 before ordering; systems needing higher wattage or a standard ATX pinout will not work with this model.

How it compares

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

Price $106.99
Cheaper than about 66% of the 3,798 comparable items (median $131.99).

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Specifications

No published specifications for this item yet.

Questions about this item

How much heat does the 240W unit dump into a rack when it runs continuously?

At full load the supply draws up to 8 A at 100-127 V or 4 A at 200-240 V, so waste heat equals the difference between that input power and the 240 W delivered to the system.

Which chassis and mainboard connectors must my M77 or M91P already have for this PS-5241-02 to plug in?

The unit is built for the M77, M70E, M71, M75E, M81 and M91P; it uses the proprietary pin-out and mounting tabs those models expect, so no adapter cables are required.

Will the HK340-71FP share a 50-60 Hz mains circuit with older 200-240 V gear without tripping breakers?

Its input range covers 100-127 V at 8 A and 200-240 V at 4 A, 50-60 Hz, so it can sit on the same circuit as legacy equipment that stays within the branch rating.

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