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Compact black ATX power supply unit with 24-pin connector and cooling fan

Ruth's sister

Ruth's sister 550W internal power cable

SKU CH-7EEQ-HSJ54

A 550 W ATX power supply with active PFC, 80 PLUS Gold efficiency, non-modular cabling and a 12 cm silent fan

  • 550 W peak output handles demanding gaming loads
  • 80 PLUS Gold certification delivers high-efficiency power conversion
  • Active PFC corrects power factor for stable operation
  • 24-pin ATX, 8-pin CPU, dual 6-pin GPU, two SATA and two IDE connectors
  • Compact 15 × 14 × 8.6 cm footprint fits small-form-factor cases

Compact 550W ATX unit

This 15 by 14 by 8.6 cm ATX power supply delivers a rated 350 W with a 550 W peak for desktop and server builds. It ships new with a fixed cable set and a 12 cm silent fan. Active PFC and 80 PLUS Gold certification support efficient operation across 170 to 264 V input.

Fixed non-modular cabling

The non-modular loom includes a 20+4 pin motherboard connector, one 8-pin (4+4) CPU lead, two 6-pin PCIe plugs, two SATA and two legacy IDE headers. Every cable is permanently attached so unused leads remain inside the case. Builders who need fully modular routing or more than two SATA devices cannot use this unit.

350 W continuous headroom

Continuous output sits at 350 W while the 550 W peak handles short transients. Dual 12 V rails feed CPU and graphics together yet the single 6-pin PCIe connector limits high-end GPU support. Systems drawing above 350 W sustained will exceed the rated capacity.

How it compares

Measured against everything we stock in Internal PSU & Riser Cables, at today’s prices. Recalculated every night.

Price $48.99
Pricier than about 82% of the 7,839 comparable items (median $14.99).

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Specifications

No published specifications for this item yet.

Questions about this item

Which connector kit matches a standard ATX motherboard and a mid-range graphics card?

The unit includes a 20+4 pin motherboard connector, an 8-pin CPU cable, two 6-pin PCIe cables, two SATA and two IDE plugs — enough for a typical desktop build.

What does the 550 W rating mean for actual system power?

Continuous output is rated at 350 W with a 550 W peak, so plan your components around the 350 W sustained figure.

How does the 20+4 pin ATX interface limit compatibility?

The 20+4 pin design fits both 20-pin and 24-pin motherboards, and the non-modular cables are fixed to that standard.

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