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Compact TFX power supply unit, matte metal casing, rear fan grille, cable bundle visible

myVolts

myVolts 300W TFX Power Supply for HP Compaq Presario CQ4000KL

SKU CH-YBMT-E7PBN

TFX 300W replacement PSU for HP Compaq Presario CQ4000KL with 20+4 pin, 4-pin CPU, 3x Molex, floppy and 3x SATA connectors plus an 80mm double ball bearing fan

  • TypeAT
  • 300 W steady power runs older PCs and new builds
  • 80 mm double-ball-bearing fan keeps temperatures low
  • 20+4 pin, 4-pin CPU, 3 SATA and 3 Molex connectors cover every drive
  • 100 to 240 V input works worldwide without a switch
  • TFX form factor fits HP Compaq Presario CQ4000KL slimline cases

TFX power supply for HP Compaq Presario CQ4000KL

This 300 W TFX unit replaces the original power supply in the HP Compaq Presario CQ4000KL. It fits slimline and small form factor chassis that require the TFX footprint. The supply delivers 300 W of continuous power for systems previously equipped with 200, 250, 300 or 350 W units. Builders working on other platforms or larger ATX cases should choose a different form factor.

Sustained 300 W output

The supply is rated for 300 W steady output rather than a short-term peak, so it maintains rated power during extended workloads. An 80 mm cooling fan with double ball bearings provides airflow without the noise penalty of sleeve-bearing designs. Input voltage auto-ranges from 100 to 240 V, allowing worldwide operation without a voltage switch.

Connector complement determines upgrade fit

Included cables are a 20+4 pin motherboard connector, a 4-pin CPU connector, three Molex connectors, a floppy connector and three SATA connectors. If your build needs additional SATA or PCIe power leads beyond this set, this unit will not meet the requirement.

Highlights

  • 300 W steady power runs older PCs and new builds
  • 80 mm double-ball-bearing fan keeps temperatures low
  • 20+4 pin, 4-pin CPU, 3 SATA and 3 Molex connectors cover every drive
  • 100 to 240 V input works worldwide without a switch
  • TFX form factor fits HP Compaq Presario CQ4000KL slimline cases

Specifications

TypeAT

Questions about this item

How loud is the 80 mm fan when the 300 W TFX unit runs continuously?

The double-ball-bearing 80 mm fan is designed for quiet, steady airflow during all-day operation.

Which cables must my HP Compaq Presario CQ4000KL already have to connect this PSU?

The unit provides a 20+4 pin motherboard connector, 4-pin CPU plug, three SATA, three Molex and a floppy lead.

Will this 300 W TFX supply work with the original 200 W or 250 W hardware in my CQ4000KL?

Yes, it replaces 200 W, 250 W, 300 W or 350 W units and supports the same Slimline and SFF form factor.

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