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Compact Flex ATX power supply unit with metal casing and rear fan grille

FSP

FSP FSP500-50FDB Flex ATX 500W power supply

SKU CH-4AW4-PSJ6P

Flex ATX unit delivers 500 W with 90 % efficiency in a 150 mm non-modular design

  • TypeATX
  • Maximum Power500 W
  • Fans1
  • Max PSU Length150 mm
  • ModularNon-Modular
  • 90 % efficiency meets 80 Plus Gold standard
  • 500 W continuous power for demanding workloads
  • 150 mm length fits compact Flex ATX cases
  • 100 % burn-in at 50 °C ensures reliability
  • Certified to UL 62368 and EN 61000-3-2

Compact Flex ATX power supply

The FSP FSP500-50FDB delivers 500 W in a 150 mm Flex ATX form factor suited to small chassis and industrial enclosures. Its non-modular design keeps cabling simple for builds where every millimetre counts.

90 % efficiency and quiet cooling

The unit meets the 80Plus Gold standard with 90 % efficiency across a full-range AC input. A single 4 cm fan provides airflow while maintaining low noise, and the supply has passed 100 % burn-in at 50 °C with an MTBF of 100K hours.

Safety certifications and industrial readiness

Compliance with EN61000-3-2 and UL-62368 confirms the unit meets international EMC and safety requirements. Active PFC and high-load components make it suitable for server, workstation and automation deployments.

Highlights

  • 90 % efficiency meets 80 Plus Gold standard
  • 500 W continuous power for demanding workloads
  • 150 mm length fits compact Flex ATX cases
  • 100 % burn-in at 50 °C ensures reliability
  • Certified to UL 62368 and EN 61000-3-2

Specifications

BrandFSP Group
TypeATX
Maximum Power500 W
Fans1
Max PSU Length150 mm
ModularNon-Modular

Questions about this item

Does the Flex ATX 500 W unit meet the 80 Plus Gold efficiency level?

The supplier states it reaches 90 % efficiency, which meets the 80 Plus Gold standard.

Will the 150 mm length fit my Mini-ITX chassis?

The power supply is 150 mm long, so it fits any case that accepts a standard Flex ATX unit of that length.

How do I connect the cables on this non-modular model?

All cables are permanently attached; route each fixed lead to the motherboard, CPU, GPU and drives, then secure the unit with the four mounting screws.

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