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Rectangular silver server power module with rear fan grille and AC inlet

Lenovo

Lenovo 94Y5975 System x 550W Platinum AC Power Supply

SKU CH-5Z8B-HFQ1T

A 550 W server power module with 80 Plus Platinum efficiency, accepting 120 V AC and 230 V DC input

  • Supply voltage120 V AC 230 V DC
  • Product typePower Module
  • Key features80 Plus Platinum
  • 550 W output supports dense server deployments
  • 80 Plus Platinum certification reduces energy waste
  • 120 V AC and 230 V DC input covers global racks
  • Environmentally friendly design meets strict efficiency standards
  • Lenovo 94Y5975 part ensures verified compatibility

550 W Platinum server power module

The Lenovo 94Y5975 is a 550 W AC power supply built for System x servers. It carries 80 Plus Platinum certification for high efficiency and accepts both 120 V AC and 230 V DC input. The unit is sold new and designed as a hot-pluggable power module.

For rack servers needing redundant 550 W units

This supply suits administrators populating or repairing compatible System x chassis that require a 550 W Platinum module. It will not fit desktop workstations, consumer PCs or any chassis that uses a different form factor or wattage rating. Buyers who need higher output or a different connector layout should look at other models.

Integrates into redundant System x power bays

The module slides into the server’s power bay and shares load with matching units for redundancy. It draws from standard 120 V AC or 230 V DC facility power without extra adapters. High Platinum efficiency reduces waste heat, leaving more thermal headroom for compute components inside the rack.

How it compares

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

Price $220.99
Pricier than about 74% of the 3,798 comparable items (median $131.99).

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Specifications

Product
Brand nameLenovo
Product line80 Plus
Product typePower Module
Power
Supply voltage120 V AC 230 V DC

Questions about this item

Which Lenovo System x chassis accepts the 94Y5975 550 W Platinum power module?

The 94Y5975 is designed for Lenovo System x servers that support hot-plug 550 W AC power modules; consult your server's parts list to confirm the correct bay and redundancy configuration.

Can the 94Y5975 share a load with an older 80 Plus Gold unit in the same server?

Mixing efficiency ratings is not recommended; the 94Y5975 carries 80 Plus Platinum certification, so pairing it with a Gold-rated supply may prevent the server from achieving full redundant operation.

How do I verify the 94Y5975 is delivering 550 W after installation?

Check the server's management console or front-panel LEDs — both will report the module as present, online and supplying up to 550 W when the 94Y5975 is seated correctly and fed with 120 V AC or 230 V DC.

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