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Compact TFX power supply unit in matte black metal casing with rear 80mm fan grille and multiple cable connectors visible

myVolts

myVolts 250W TFX Power Supply for Dell PS-5251-5

SKU CH-EAE5-22MCQ

A 250W TFX power supply with 20+4 pin motherboard, 4-pin CPU, three Molex, floppy and three SATA connectors, cooled by an 80mm double ball bearing fan and accepting 100/240V input

  • TypeAT
  • 250 W steady output powers Dell PS-5251-5 systems
  • TFX form factor fits slimline and SFF cases
  • 80 mm double ball-bearing fan keeps temperatures low
  • 100/240 V input works worldwide without a switch
  • 20+4 pin, 4-pin CPU, 3× Molex, 3× SATA connectors cover legacy and modern drives

Replacement for Dell PS-5251-5

This TFX power supply delivers 250 W of continuous power and fits Dell systems using the Liteon PS-5251-5 unit. It connects via a 20+4 pin motherboard plug, a 4-pin CPU connector, three Molex, a floppy connector and three SATA leads. An 80 mm double ball-bearing fan handles cooling across the 100 to 240 V input range.

Fits slimline and SFF Dell desktops

The compact TFX form factor suits small-form-factor and slimline Dell chassis that originally shipped with a 200, 250, 300 or 350 W PSU. Builders working in standard ATX cases or needing higher wattage for demanding components should consider other options. The fixed cable set also limits flexibility for custom cable routing.

250 W continuous output

The single figure that decides fit is the 250 W steady-state rating, which matches or exceeds the original unit in compatible Dell models. If the target system requires more power than this rating provides, the supply will not be adequate.

Pontos fortes

  • 250 W steady output powers Dell PS-5251-5 systems
  • TFX form factor fits slimline and SFF cases
  • 80 mm double ball-bearing fan keeps temperatures low
  • 100/240 V input works worldwide without a switch
  • 20+4 pin, 4-pin CPU, 3× Molex, 3× SATA connectors cover legacy and modern drives

Especificações

TypeAT

Perguntas sobre este artigo

Will the 20+4 pin motherboard connector on this 250 W TFX unit fit the existing board in my Dell PS-5251-5 system?

Yes, the 20+4 pin connector matches the standard ATX motherboard header used by the original PS-5251-5 power supply.

How can I confirm the 80 mm double ball-bearing fan is spinning correctly after I install the replacement PSU?

Power on the system and listen for the fan; you should feel steady airflow from the rear vent within seconds.

Which cables come attached to the 250 W TFX power supply and what must I source separately?

The unit includes 20+4 pin motherboard, 4-pin CPU, three Molex, one floppy and three SATA connectors; no extra cables are required for a typical Dell PS-5251-5 swap.

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