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SFX power supply unit with modular cables visible

Ruth's sister

Ruth's sister SFX650 550W internal power cable

SKU CH-7XJ0-4FCCV

A 550W SFX power supply with full modular cables, 80 PLUS Bronze efficiency and 24-pin ATX, SATA and PCIe connectors for desktop builds

  • Delivers 550W for stable desktop gaming
  • 80 PLUS BRONZE efficiency reduces energy waste
  • Full modular design keeps cable routing tidy
  • Active PFC corrects input from 90-264v
  • Includes 4 SATA ports and 2 x6 pin connectors

SFX650 550W fully modular PSU

This SFX form-factor supply delivers 550 W of continuous power for compact desktop builds. Active PFC and 80 PLUS Bronze certification provide efficient operation across a 90–264 V input range. The fully modular cable set includes a 20+4 pin ATX connector, a 4-pin CPU plug, two 6-pin PCIe leads and four SATA connectors. It suits builders assembling small-form-factor gaming or workstation systems.

Sustained-load behaviour

The unit is rated for 18 A on the 12 V rail, so the 550 W figure represents continuous output rather than a peak burst. Active power-factor correction maintains stable voltage regulation during extended gaming or rendering sessions. Bronze-level efficiency keeps waste heat manageable inside tight SFX cases. Protection circuits guard against over-voltage, over-current and short-circuit conditions.

Connector and cable limits

Four SATA ports and two 6-pin PCIe plugs define the practical expansion ceiling for drives and graphics cards. A single 4-pin CPU connector restricts use to motherboards that do not require an 8-pin EPS feed. The 20+4 pin ATX interface covers standard desktop boards but cannot supply auxiliary power beyond the specified pins. Builds needing more PCIe or SATA connections will exceed the supplied cable complement.

Highlights

  • Delivers 550W for stable desktop gaming
  • 80 PLUS BRONZE efficiency reduces energy waste
  • Full modular design keeps cable routing tidy
  • Active PFC corrects input from 90-264v
  • Includes 4 SATA ports and 2 x6 pin connectors

Specifications

No published specifications for this item yet.

Questions about this item

How loud and hot does the SFX650 get when it runs at 550W all day?

The 80 PLUS BRONZE rating keeps efficiency high, so waste heat and fan noise stay low during continuous 550W loads.

Which connectors must my build already have to use this fully modular SFX650?

Your motherboard needs a 20+4 pin ATX socket and a 4-pin CPU power header; your graphics card needs two 6-pin PCIe plugs; drives need four SATA ports.

Will the SFX650 work with an older board that only has a 20-pin ATX connector?

Yes — the 20+4 pin cable splits so the 20-pin portion fits legacy boards while the extra 4 pins tuck aside.

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