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Grey TFX power supply unit with single fan

Replace Power

Replace Power RP-TFX-12V-34 420W TFX power supply

SKU CH-XJZ9-C7KQA MPN RP-TFX-12V-34

TFX power supply delivering 420 W to upgrade 200, 250, 300 or 350 W units in slimline and SFF systems

  • Fan configuration1
  • Product colorGrey
  • Product typeTFX12 V
  • Product weight0.1
  • TFX form factor fits slimline and SFF chassis
  • 420 W output upgrades 200/250/300/350 W units
  • 20+4 pin motherboard, 4-pin CPU, 2× Molex, floppy, 2× SATA connectors
  • 80 mm fan provides active cooling
  • 100/240 V input works worldwide

Compact TFX power supply for small-form-factor

This Replace Power TFX unit delivers 420 watts in a slim enclosure designed for compact desktops and slimline cases. It fits systems that originally shipped with 200, 250, 300 or 350 watt power supplies. The grey chassis uses a single 80 mm fan for airflow.

Replacement compatibility

The supply is built as a direct swap for the IP-P300DF1-0, T498G and HEC-300FN-1RX models. It provides a 20+4 pin motherboard connector, a 4-pin CPU connector, two Molex, one floppy and two SATA connectors. Input voltage covers 100 to 240 volts.

Steady output under continuous load

Rated at 420 watts, the unit maintains its full output during extended operation rather than only in short bursts. The single fan runs continuously to move heat through the compact TFX housing. Builders who need modular cabling or higher peak headroom should look at larger form-factor supplies.

How it compares

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

Price $55.99
Cheaper than about 88% of the 10,869 comparable items (median $142.99).

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Specifications

Product
Brand nameReplace Power
Model nameRP-TFX-12 V-34
Product colorGrey
Product typeTFX12 V
More details
Fan configuration1

Questions about this item

How much continuous power can this 420 W TFX supply deliver to a slimline desktop?

It provides up to 420 W of continuous output, replacing original 200 W, 250 W, 300 W or 350 W units in compatible slimline and small-form-factor systems.

What mains voltage range does the 100/240 V input support in practice?

The unit auto-switches between 100 V and 240 V AC, so it works on standard household circuits worldwide without a voltage selector switch.

Will the TFX chassis and 80 mm fan fit my existing slimline case mounting holes?

Yes, the TFX12V form factor matches the original IP-P300DF1-0, T498G and HEC-300FN-1RX dimensions and mounting points for direct replacement.

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