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Compact SFX power supply unit with black metal casing and fixed cables visible

Ruth's sister

Ruth's sister FSP250-55SFX 250W SFX internal power cable

SKU CH-T5FZ-E2JM2

A 250W SFX power supply with 20+4 pin, two SATA and two IDE connectors for desktop or cash-register builds

  • 250 W output powers compact desktops and cash registers
  • SFX form factor fits 12.5 × 6.4 × 10 cm chassis space
  • Active PFC corrects power factor across 90–264 V input
  • Two SATA connectors supply drives without extra adapters
  • Non-modular 20+4 pin and dual IDE cables simplify builds

SFX 250W power supply for compact desktops

This SFX form-factor unit delivers 250 W of continuous power for small-footprint desktops, all-in-one PCs and cash-register machines. It fits the 12.5 × 6.4 × 10 cm envelope common to many slim chassis and uses a non-modular cable layout. The 20+4-pin ATX connector and active PFC meet the Intel ATX12V 2.3 design standard.

Replaces older low-wattage SFX units

The FSP250-55SFX can replace earlier 180 W, 200 W, 220 W, 270 W, 300 W and 320 W SFX models such as the FSP200-55SFX, DPS-350JB and HK-series units. The jump is worthwhile when the existing supply cannot sustain the +12 V and +3.3 V currents required by newer board components or when protection features are absent. Built-in over-voltage, over-current, under-voltage and short-circuit safeguards add reliability in unstable mains environments.

Limited to SATA and legacy IDE drives

The unit provides two SATA power connectors and two four-pin IDE connectors but no dedicated 12 V graphics-card pins. Systems that require auxiliary PCIe power for a discrete GPU cannot use this supply. The non-modular design means all cables remain attached, which can restrict routing in extremely tight enclosures.

Highlights

  • 250 W output powers compact desktops and cash registers
  • SFX form factor fits 12.5 × 6.4 × 10 cm chassis space
  • Active PFC corrects power factor across 90–264 V input
  • Two SATA connectors supply drives without extra adapters
  • Non-modular 20+4 pin and dual IDE cables simplify builds

Specifications

No published specifications for this item yet.

Questions about this item

Will the 12.5 cm by 6.4 cm SFX frame fit my existing chassis?

The unit measures 12.5 cm long, 6.4 cm wide and 10 cm high, matching the standard SFX form factor used in many small-form-factor cases.

Which connectors must I attach during installation, and which one is often missed?

Connect the single 20+4 pin motherboard cable, the two SATA plugs and the two IDE plugs; builders frequently forget the IDE connectors needed for older drives.

When should I expect to replace the internal cooling fan?

The non-modular design means the fan cannot be swapped separately; plan to replace the entire 250 W supply if the fan becomes noisy or fails.

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