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Compact silver Flex ATX power supply with 40mm fan and fixed cables

FSP

FSP FlexGURU PRO 650W Flex ATX power supply

SKU CH-5P7E-WB9ZD

A 650 W Flex ATX power supply with 80 Plus Platinum efficiency, ATX 3.1 and Flex ATX V2.1 compliance, a single +12 V rail, and a universal bracket for 1U IPC and NAS builds

  • TypeFlex ATX
  • Maximum Power650W
  • ModularNon-Modular
  • Fans1 x 40 mm
  • PFCActive
  • Main Connector20+4Pin

Options 650W

  • 80 PLUS Platinum efficiency reaches 92% to cut power loss
  • ATX 3.1 and Flex ATX V2.1 compliance ensures stable delivery
  • Single +12V rail provides 650W for demanding components
  • 40 mm ball-bearing fan with smart control keeps noise low
  • Japanese electrolytic capacitors and full protection suite extend reliability

Compact 650 W Flex ATX PSU

The FSP FlexGURU PRO delivers 650 W through a single +12 V rail in a Flex ATX form factor. It meets ATX 3.1 and Flex ATX V2.1 specifications and carries 80 PLUS Platinum certification with up to 92 % efficiency. A 40 mm ball-bearing fan and smart fan control keep acoustic output low. Japanese electrolytic capacitors support long-term reliability.

Replaces older Flex ATX units

Builders moving from a lower-wattage or lower-efficiency Flex ATX supply gain headroom for modern GPUs and CPUs. The jump is worth it when the existing unit cannot sustain peak loads or lacks the ATX 3.1 and Flex ATX V2.1 compliance required by newer hardware. The included universal bracket also lets the same unit serve 1U industrial or networking chassis.

Suits SFF, NAS and 1U IPC builds

This non-modular design fits small-form-factor PCs, NAS appliances and 1U industrial systems where cable routing space is tight. Buyers who need fully modular cabling for easier cable management in larger cases should look elsewhere. Systems requiring more than two PCIe power connectors or more than four SATA power connectors will also need a different unit.

Highlights

  • 80 PLUS Platinum efficiency reaches 92% to cut power loss
  • ATX 3.1 and Flex ATX V2.1 compliance ensures stable delivery
  • Single +12V rail provides 650W for demanding components
  • 40 mm ball-bearing fan with smart control keeps noise low
  • Japanese electrolytic capacitors and full protection suite extend reliability

Specifications

BrandFSP Group
ModelFlexGURU PRO 650W
SeriesFlexGURU PRO Series
TypeFlex ATX
Maximum Power650W
ModularNon-Modular
Fans1 x 40 mm
PFCActive
Main Connector20+4Pin
+12V RailsSingle
PCI-Express Connector2 x 6+2-Pin
SATA Power Connector4
Efficiency> 90%
Energy-Efficient80 PLUS PLATINUM Certified
Input Voltage100 - 240 V
Input Frequency Range60-50Hz

Other versions of this model

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Questions about this item

Will the non-modular cables fit inside a small Flex ATX chassis without blocking airflow?

The unit uses a fixed cable set designed for the Flex ATX form factor; the compact 40 mm fan and single +12V rail layout keep the internal profile tight for SFF builds.

Can this PSU deliver stable power to a modern GPU through the provided connectors?

Two 6+2-pin PCIe connectors supply up to 650W on a single +12V rail, supporting current high-end graphics cards within the rated limit.

Does the included bracket let me mount the supply in a 1U rack or industrial enclosure?

Yes, the universal fix bracket converts the Flex ATX body into a standard 1U IPC, networking or surveillance power supply.

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