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Black Flex ATX power supply unit with modular cables visible

Ruth's sister

Ruth's sister 400w internal power cable

SKU CH-N0Z0-XT97M

Delivers 400W continuous power with 80 PLUS Gold efficiency and Active PFC in a Flex ATX form factor for small cases

  • 400 W continuous power for demanding builds
  • 80 PLUS Gold efficiency cuts energy waste
  • Active PFC corrects power factor automatically
  • Flex ATX form factor fits compact cases
  • 20+4 pin, 8 pin CPU, dual 6-pin GPU connectors

Compact 400W Flex ATX Power Supply

This 400W Flex ATX unit delivers continuous power at 40 rated operating temperature for 24/7 operation. It fits small-form-factor desktops and servers that require the 1U (Flex ITX) footprint. A single +12V rail and Japanese main condenser support stable output under sustained load.

Active PFC and Connector Layout

Active PFC corrects power factor across the 90-264V input range for efficient draw. The non-modular cable set provides a 20+4 pin main connector, an 8 pin CPU connector, two 6 pin graphics connectors, two SATA ports and two D-type bus connectors. Gold 80 PLUS certification confirms high efficiency at typical loads.

Flex ATX Form-Factor Constraints

The 1U height limits internal airflow, so case ventilation must handle the thermal load of 400W continuous output. Non-modular cabling occupies space in tight chassis and cannot be reduced to only the cables in use. Builders needing more than two SATA devices or additional PCIe power connectors will find the fixed harness insufficient.

Highlights

  • 400 W continuous power for demanding builds
  • 80 PLUS Gold efficiency cuts energy waste
  • Active PFC corrects power factor automatically
  • Flex ATX form factor fits compact cases
  • 20+4 pin, 8 pin CPU, dual 6-pin GPU connectors

Specifications

No published specifications for this item yet.

Questions about this item

Will the 8-pin CPU power connector or the 20+4-pin motherboard connector need replacement after long-term use?

Both connectors are built into the non-modular cable loom and rated for the unit's 400 W continuous output at 40 °C; they do not require scheduled replacement.

What limit appears first when the supply runs at full load continuously?

The 400 W ceiling at the rated 40 °C operating temperature is the first hard limit; protection circuits will shut the unit down if that output is exceeded.

How much fan noise and heat should I expect when the PSU runs all day in a small case?

Active PFC and 80 Plus Gold efficiency keep waste heat low at 90-264 V input, and the 1U form factor uses a compact fan sized for the Flex ATX chassis airflow.

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