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Compact TFX power supply unit with metal casing and rear fan grille

myVolts

myVolts 320 W TFX Power Supply for HP Pavilion Slimline s5304y s5305z CTO

SKU CH-2A9F-BGF38

TFX 320 W replacement PSU for HP Pavilion Slimline s5304y and s5305z CTO with 20+4 pin, 4-pin CPU, two Molex, floppy and two SATA connectors

  • TypeAT
  • 320 W steady power for demanding builds
  • TFX form factor fits Slimline and SFF cases
  • 20+4 pin, 4-pin CPU, dual Molex, dual SATA connectors
  • 80 mm fan keeps temperatures low
  • 100–240 V input works worldwide

Compatible HP Slimline Models

This TFX power supply is designed for HP Pavilion Slimline s5304y and s5305z CTO desktops. It serves as a direct replacement for the original unit in these small-form-factor systems. The 320 W output supports typical office components and standard peripherals.

Suitable Upgrades and Limitations

The unit fits builders upgrading from 200 W, 250 W, 300 W or 350 W supplies in compatible Slimline or SFF chassis. It provides a 20+4 pin motherboard connector, 4-pin CPU, two Molex, floppy and two SATA leads. Systems requiring higher wattage or different form factors should look elsewhere.

Sustained Load Behaviour

An 80 mm fan handles cooling during continuous operation at the rated 320 W. The supply accepts 100 to 240 V input for stable delivery across regions. Steady power is maintained for older PCs and custom builds running typical workloads over extended periods.

Highlights

  • 320 W steady power for demanding builds
  • TFX form factor fits Slimline and SFF cases
  • 20+4 pin, 4-pin CPU, dual Molex, dual SATA connectors
  • 80 mm fan keeps temperatures low
  • 100–240 V input works worldwide

Specifications

TypeAT

Questions about this item

Do I need an existing HP Pavilion Slimline s5304y or s5305z chassis to install this TFX power supply?

Yes, this TFX form-factor unit is built for the HP Pavilion Slimline s5304y and s5305z CTO cases and replaces the original 200, 250, 300 or 350 W PSU.

Will the 320 W output still run my older components that previously used a 250 W supply?

The 320 W rating provides headroom over a 250 W unit while delivering the same 20+4 pin motherboard, 4-pin CPU, Molex, floppy and SATA connectors your existing parts expect.

How can I confirm the PSU is operating correctly once fitted?

The 80 mm cooling fan should spin, the system must power on without shutdowns, and all drives connected to the SATA, Molex and floppy leads should be detected in BIOS.

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