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Compact SFX power supply unit with matte black finish and fixed cables visible

Ruth's sister

Ruth's sister FSP250-55SFX internal power cable

SKU CH-TKSJ-JBA26

A 250 W SFX power supply with 20+4-pin, two SATA and two IDE connectors for small-form-factor desktops

  • 250 W output powers small-form-factor desktops and HTPCs
  • SFX dimensions of 12.5 × 6.4 × 10 cm fit compact chassis
  • Active PFC with 90–264 V input handles unstable mains
  • 20+4-pin ATX plus two SATA and two IDE connectors cover legacy builds
  • Non-modular design keeps cable routing simple in tight spaces

What this power supply fits

The FSP250-55SFX is a 250 watt SFX unit built for small chassis such as living-room HTPCs, cashier terminals and all-in-one desktops. Its 12.5 by 6.4 by 10 centimetre frame slides into tight spaces where full-size ATX units cannot go. The non-modular cable set keeps the install simple for compact builds.

The connector that decides compatibility

A single 20+4 pin motherboard connector delivers power to the board, while two SATA and two IDE plugs serve drives and legacy peripherals. No PCIe 12 volt pins are present, so discrete graphics cards cannot be powered from this unit. Active PFC and the Intel ATX12V 2.3 design standard shape the output rails.

Capacity and headroom for light loads

The 250 watt rating handles integrated graphics, office workloads and media playback without strain. Protection circuits guard against over-voltage, over-current, under-voltage and short circuits. Demanding GPUs or high-core-count CPUs exceed what this supply can deliver, so it is not suited for gaming or workstation configurations.

Highlights

  • 250 W output powers small-form-factor desktops and HTPCs
  • SFX dimensions of 12.5 × 6.4 × 10 cm fit compact chassis
  • Active PFC with 90–264 V input handles unstable mains
  • 20+4-pin ATX plus two SATA and two IDE connectors cover legacy builds
  • Non-modular design keeps cable routing simple in tight spaces

Specifications

No published specifications for this item yet.

Questions about this item

What does the 250 W rating mean for a small-form-factor build?

The 250 W output is designed for low-power systems such as HTPCs, cash-register PCs or compact desktops with integrated graphics and only a few drives.

How does the 20+4-pin ATX connector limit motherboard compatibility?

The single 20+4-pin cable fits standard ATX motherboards but provides no dedicated CPU 4-pin or PCIe power, so the board must draw all power through that connector.

Will the 12.5 × 6.4 × 10 cm SFX body fit my slim chassis?

The supply measures 12.5 cm long, 6.4 cm wide and 10 cm high, matching the SFX form factor used in many small enclosures and all-in-one units.

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