FSP FlexGURU Pro 500W Flex ATX power supply

Flex ATX 500W power supply

The FSP FlexGURU Pro delivers 500W of continuous power in the Flex ATX form factor, making it suitable for small form factor PCs, 1U industrial chassis and NAS enclosures. It carries 80 Plus Gold certification and uses a single +12V rail to supply stable voltage to demanding components. A universal mounting bracket is included for broad chassis compatibility. All cables are non-modular, all-black and rounded for easier routing in tight spaces.

Thermals noise and power draw

A 40mm double ball-bearing fan with intelligent speed control manages cooling while keeping acoustic output low during typical workloads. Gold-rated efficiency above 90% reduces waste heat and lowers energy draw from the wall. Active PFC and a 100-240V input range ensure clean power delivery across global mains supplies. Premium Japanese electrolytic capacitors support tight voltage regulation under sustained load.

Upgrade path and fit

This unit replaces older, lower-wattage Flex ATX supplies when a build requires more headroom for discrete graphics or additional drives. The two 6+2-pin PCIe connectors and four SATA power plugs support a modern GPU and multiple storage devices. Builders staying with non-modular cabling and the Flex ATX footprint will find a direct mechanical and electrical fit. Those needing fully modular cables or higher wattage should consider other form factors.