We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
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

  • Max wattage650 W
  • Power efficiency> 90%
  • Modular cablingNon-Modular
  • Fan configuration1 × 40 mm
  • Power factor correctionActive
  • Main power connector20+4Pin

Wattage 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.

How it compares

Measured against everything we stock in ATX Desktop Power Supplies, at today’s prices. Recalculated every night.

Price $176.99
Pricier than about 58% of the 10,869 comparable items (median $142.99).
Max wattage 650 W
Lower than about 70% of the 930 comparable items (median 850 W).

New to this? Buying PC parts with Monero — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameFSP Group
Product lineFlexGURU PRO Series
Model nameFlexGURU PRO 650 W
Product typeFlex ATX
Ports & slots
PCIe power connectors2 × 6+2-Pin
SATA power connectors4
Power
Max wattage650 W
Power efficiency> 90%
Modular cablingNon-Modular
Power factor correctionActive
Main power connector20+4Pin
12V railsSingle
Efficiency certification80 PLUS PLATINUM Certified
Supply voltage100–240 V
AC input frequency60-50 Hz
More details
Fan configuration1 × 40 mm

Other versions of this model

2 more in the same range

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.

More in ATX Desktop Power Supplies

Similar items