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FLEX-650 modular PSU, compact 15x4x8.2cm unit, gold finish, full cable set visible

Ruth's sister

Ruth's sister FLEX-650 internal power cable

SKU CH-QY07-NZTV8

A compact 550 W Flex ATX power supply with full modular cables, 80 Plus Gold efficiency and 12 V 8-pin GPU power

  • Fully modular design simplifies cable routing inside compact cases
  • 80 PLUS Gold certification reduces energy waste during operation
  • 550 W continuous output with 650 W peak handles demanding ITX builds
  • Active PFC and 95-264 V input ensure stable power worldwide
  • 15 × 4 × 8.2 cm footprint fits 1U and small-form-factor enclosures

Compact 550W FLEX PSU for ITX and NAS builds

The Ruth's sister FLEX-650 is a 550W Flex ATX power supply rated for 80 PLUS Gold efficiency. It targets small-form-factor desktops, ITX cases and 1U NAS enclosures where standard ATX units do not fit. Full modular cabling keeps the interior tidy in tight chassis.

Verify case clearance and motherboard power needs

Measure the 15 x 4 x 8.2 cm footprint against your case's PSU cavity before ordering. Confirm the motherboard accepts a 20+4 pin main connector and a 4 pin CPU power header. The unit delivers 14A on the 12V rail and provides two SATA connectors for drives.

Gold-rated modular unit with short cables

Active PFC and Gold certification reduce waste heat in confined spaces. Full modular design lets you attach only the required cables, improving airflow in 1U layouts. The 8 pin graphics connector supports a discrete GPU within the 550W continuous rating.

How it compares

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

Price $73.99
Pricier than about 90% 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

Does the FLEX-650 include the 20+4-pin ATX, 4-pin CPU and two SATA cables in the box?

Yes, the fully modular unit ships with a 20+4-pin main cable, a 4-pin CPU cable and two SATA power cables.

When should I choose the 550 W rated / 650 W peak FLEX-650 over a lower-wattage FLEX unit?

Select this model when your build needs up to 550 W continuous with 650 W peak headroom, 80 PLUS Gold efficiency and a compact 15 × 4 × 8.2 cm footprint.

What does the 550 W rating mean once the FLEX-650 is installed in a desktop?

It delivers up to 550 W continuously and 650 W peak at 95–264 V input, with Active PFC and 80 PLUS Gold efficiency in a 1U form factor.

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