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
Grey ATX power supply unit with single fan

Replace Power

Replace Power 420W ATX PSU for Liteon PS-5251-08

SKU CH-B8A5-7G42D

A 420 W ATX replacement unit with a single fan for Liteon PS-5251-08 models

  • Fan configuration1
  • Product colorGrey
  • Product typeATX
  • Product weight0.1
  • Delivers 420 W continuous power for stable system operation
  • Single 12 V rail rated at 16 A supports demanding components
  • 20+4 pin ATX and 12 V connectors fit Dell Liteon PS-5251-08 replacements
  • Input range 115 / 230 V at 50/60 Hz suits global mains supply
  • Hold-up time of 17 ms maintains output during brief power dips

Direct Replacement for Liteon PS-5251-08

This Replace Power unit is a 420W ATX supply built to match the Liteon PS-5251-08 and part numbers 441390-001 and 440569-001. It fits the same reduced-depth chassis and uses a single fan in a grey housing. The 20+4 pin main connector and +12V rail deliver 16A to the board.

Upgrade from a Failing Original Unit

When the factory supply becomes noisy, overheats or can no longer hold voltage, this 420W module restores stable output. It accepts 115 or 230V input at 50 or 60Hz and provides 3.3V at 13A, 5V at 13A, -12V at 0.8A, -5V at 0.5A and 5VSB at 2.5A. Rise time stays below 70ms with a minimum 17ms hold-up time.

Fits Existing Mounting Points and Cabling

The reduced-depth form factor slides into the original bracket without modification. Single-rail +12V delivery simplifies load balancing across the harness. Grey finish matches the OEM aesthetic. Builders who need more than 420W or additional PCIe connectors for discrete graphics cannot use this unit.

How it compares

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

Price $66.99
Cheaper than about 81% 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 nameReplace Power
Product colorGrey
Product typeATX
More details
Fan configuration1

Questions about this item

Will the reduced-depth 420W ATX unit fit the same mounting holes as the original Liteon PS-5251-08?

Yes, the replacement is built to the standard ATX form factor so it uses the same four mounting holes as the Liteon PS-5251-08 it replaces.

What is the most common mistake when installing this PSU into a Dell chassis that used the 441390-001?

Forgetting to seat the 20+4 pin main connector and the separate +12V connector fully; both must click into place before powering on.

The label shows a single 12V rail rated at 16A — does that rail ever need servicing or replacement?

No, the internal rail is solid-state and maintenance-free; only the single cooling fan may need cleaning or replacement after extended use.

More in ATX Desktop Power Supplies

Similar items