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Black modular PSU cable set with 20+4 pin, 8 pin CPU, dual 6+2 pin PCIe and SATA connectors on braided sleeves

Ruth's sister

Ruth's sister FLEX-600W internal power cable

SKU CH-5SDE-PMF9K

Full modular 550 W PSU with 20+4-pin, 8-pin CPU, dual 6+2-pin PCIe and SATA cables for compact 1U desktop builds

  • Full modular design simplifies cable management
  • 550 W rated output with 650 W peak power
  • Active PFC corrects power factor for stable delivery
  • 90 V to 264 V input range works worldwide
  • 45 cm cables reach components in compact 1U builds

Compact 1U PSU with full modular cables

This Ruth's sister FLEX-600W unit is a small-form-factor power supply rated at 550 W with a 650 W peak. It targets builders assembling 1U servers, NAS boxes or compact gaming desktops where space is tight. The fully modular design lets you attach only the cables your build actually needs.

Check 14-pin motherboard header and GPU power needs

The main ATX connection uses a proprietary 14-pin to 20+4-pin cable, so your motherboard must accept that pin-out or you will need an adapter. Graphics cards requiring an 8+6-pin layout such as an RTX 2080 Super are supported via the included 6-pin to dual 6+2-pin PCIe lead. Verify your chassis can accommodate the 15×4×8.2 cm dimensions before ordering.

Active PFC maintains stable output across 90–264 V

With active power-factor correction the unit delivers its rated 550 W continuously across a wide 90 V to 264 V AC range at 50–60 Hz. The 18 A output on the 12 V rail handles sustained loads without relying on the 650 W peak figure. An 80 PLUS “Other Certification” rating indicates baseline efficiency during extended operation.

Highlights

  • Full modular design simplifies cable management
  • 550 W rated output with 650 W peak power
  • Active PFC corrects power factor for stable delivery
  • 90 V to 264 V input range works worldwide
  • 45 cm cables reach components in compact 1U builds

Specifications

No published specifications for this item yet.

Questions about this item

What cables come in the box and is anything else needed?

The set includes a 20+4 pin motherboard cable, an 8-pin CPU cable, a SATA/IDE power chain and a dual 6+2 pin PCIe cable; no extra cables are required for a typical build.

Which capacity should I pick between the 550 W and 600 W labels?

The unit is rated at 550 W continuous with a 650 W peak, so the 550 W figure is the sustained capacity to plan around.

What does the 18 A output mean for my graphics card?

The 18 A rating is on the 12 V rail, and the included dual 6+2-pin PCIe cable supports cards such as an RTX 2080 Super.

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