We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
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

  • Product 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.

How it compares

Measured against everything we stock in ATX Desktop Power Supplies, at today’s prices. Recalculated every night.

Price $30.99
Cheaper than about 94% of the 10,869 comparable items (median $142.99).

New to this? Buying PC parts with Monero — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameDELL
Model nameNCNFF
Product 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.

More in ATX Desktop Power Supplies

Similar items