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Compact TFX power supply unit with 80mm fan and multiple connectors

myVolts

myVolts TFX Power Supply 400W for FSP FSP250-50SAV

SKU CH-2Z2F-3Q48E

TFX form-factor PSU delivers 400 W to replace 200–350 W units in slimline SFF systems

  • Product typeAT
  • 400W output powers demanding components
  • TFX form factor fits slimline and SFF cases
  • 20+4 pin motherboard connector ensures broad compatibility
  • 80mm double ball bearing fan provides reliable cooling
  • 100/240V input supports worldwide voltage standards

TFX 400 W replacement PSU

This TFX form-factor unit delivers 400 W of continuous power and replaces the FSP FSP250-50SAV in slimline and small-form-factor desktops. It upgrades systems that originally shipped with 200, 250, 300 or 350 W supplies. Builders fitting a compact chassis will find a direct mechanical and electrical match. It is not for buyers who need higher wattage or a standard ATX footprint.

20+4 pin motherboard and 4-pin CPU connectors

The unit provides a 20+4 pin motherboard connector, a 4-pin CPU connector, two Molex, a floppy connector and two SATA power leads. An 80 mm double-ball-bearing fan handles cooling inside the slim enclosure. Input voltage spans 100 to 240 V for worldwide use. Builders requiring additional PCIe power cables or modular cabling will need a different supply.

Dell desktop compatibility

The replacement targets a wide range of Dell desktops that use the TFX form factor, simplifying the swap without adapter cables. The included connector set covers legacy and current drives in one package. Users whose systems demand more than two SATA devices or lack a floppy header gain no extra connectors from this unit.

How it compares

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

Price $97.99
Cheaper than about 68% of the 10,869 comparable items (median $142.99).

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Specifications

Product
Product typeAT

Questions about this item

What is the maximum continuous power this 400W TFX supply can deliver?

The unit is rated for 400W steady output and can replace 200, 250, 300 or 350W supplies in Slimline and SFF models.

How much noise and heat does the 80mm double ball-bearing fan produce during all-day operation?

The passive 80mm fan with double ball bearings provides cooling to prevent overheating or burning out the system.

Which existing connectors must my motherboard and drives already have for this PSU to work?

It requires a 20+4 pin motherboard header, a 4-pin CPU header, two Molex, one floppy and two SATA connectors.

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