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Dell NCNFF 550W rack power supply unit

DELL

DELL NCNFF 550W EPP 80+ Platinum Power Supply

SKU CH-B5D1-W5CXW

A 550 watt 80+ Platinum rack power supply compatible with Dell PowerEdge R340, R440, R6515 and XR2 servers

  • TypeRack
  • 80+ Platinum efficiency reduces power waste
  • 550W output supports demanding server workloads
  • Rack form factor fits standard server chassis
  • Compatible with PowerEdge R340, R440, R6515 and XR2

Dell NCNFF 550W Platinum PSU for Rack Servers

This Dell NCNFF power supply delivers 550 watts with 80+ Platinum efficiency for compatible PowerEdge rack servers. It is built for the R340, R440, R6515 and XR2 platforms where a redundant or replacement unit is required. The EPP design supports hot-plug operation in enterprise environments. New condition ensures full rated output from day one.

Capacity and headroom for 550W Platinum unit

The 550W rating covers typical dual-socket configurations with moderate storage and PCIe card counts in the listed chassis. Headroom narrows when both CPUs run sustained heavy loads alongside full drive bays and multiple high-power add-in cards. Buyers needing more power for denser GPU or accelerator deployments should verify a higher-wattage alternative. Units without hot-plug bays or outside the named Dell models are not supported.

Highlights

  • 80+ Platinum efficiency reduces power waste
  • 550W output supports demanding server workloads
  • Rack form factor fits standard server chassis
  • Compatible with PowerEdge R340, R440, R6515 and XR2

Specifications

BrandDELL
ModelNCNFF
TypeRack

Questions about this item

Will the 550W 80+ Platinum unit power a Dell PowerEdge R340 alongside my existing drives?

The supply is listed as compatible with the R340, so it will deliver the rated 550 W to that chassis and its installed drives.

How can I verify the 80+ Platinum efficiency is active after installation?

Check the iDRAC or system BIOS power telemetry; it should report input and output readings consistent with 80+ Platinum efficiency levels.

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