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myVolts 420W TFX power supply unit silver metal casing 80mm fan visible

myVolts

myVolts 420W TFX Power Supply for HP s5122f s5123w s5150t

SKU CH-KFE8-VNWW4

TFX power supply delivers 420 W for HP Pavilion Slimline s5122f, s5123w and s5150t desktops

  • Product typeAT
  • Replaces 250, 300 or 350 W units with 420 W steady power
  • TFX form factor fits HP Pavilion Slimline s5122f, s5123w, s5150t
  • 20+4 pin motherboard, 4-pin CPU, 2× Molex, floppy and 2× SATA connectors included
  • 80 mm double-ball-bearing fan provides reliable cooling
  • Wide-range 100–240 V input works worldwide without a switch

Direct replacement for HP Slimline

The myVolts 420W TFX unit fits HP Pavilion Slimline s5122f s5123w s5150t desktops. It supplies 420 watts through a 20+4 pin motherboard connector, a 4-pin CPU connector, two Molex, a floppy and two SATA plugs. An 80 mm double ball bearing fan handles cooling.

Upgrade from 250 300 320 or 350 watt units

The supply replaces original 250W 300W 320W or 350W PSUs in the listed models. The jump is worthwhile when added drives or a discrete graphics card push the old unit past its limit. It is not for builders who need more than 420 watts or a different form factor.

TFX form factor drops into the same chassis

Installation uses the existing mounting points and the standard 20+4 pin layout. The 100/240 V input auto-ranges so no voltage switch is required. The only common issue is cable length in deeper ATX cases which this TFX unit does not address.

How it compares

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

Price $99.99
Cheaper than about 67% 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
Product typeAT

Questions about this item

Does the 420W TFX power supply fit the HP Pavilion Slimline s5122f, s5123w and s5150t cases?

Yes, it is a TFX form-factor unit designed for those Slimline and SFF models.

Which cables must be connected during installation, and which one is most often missed?

Connect the 20+4 pin motherboard, 4-pin CPU, two Molex, floppy and two SATA leads; the 4-pin CPU plug is the step most often overlooked.

When should the 80 mm double-ball-bearing fan be cleaned or replaced?

Clean dust from the fan every 6–12 months; replace it if bearing noise appears or airflow drops noticeably.

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