Power supply FSP FlexGURU 300W ATX 2.52 Black PSU - PPA3004300

FSP FlexGURU 300W is a compact internal Flex ATX PC power supply aimed at more specialized and small systems – from SFF machines to industrial solutions. With 300 W total DC power and 80+ Gold certification, you get high efficiency in a small form factor. The fully modular design with "ribbon" cables helps for a clean interior and better airflow, which is critical in tight cases. The black color and compact dimensions 150 x 81.5 x 40.5 mm make it easy to integrate into any Flex ATX configurations.

What you get

With typical efficiency ≥90% and active PFC, you reduce energy losses and load on the electrical network, and the power supply operates cooler and more stably under prolonged load. The Flex ATX format with high power density provides about 20% more power compared to standard Flex ATX of the same size, which is important when space in the case is limited, but the hardware is not particularly light. The built-in Japanese electrolytic capacitors and the full protection package (OVP, UVP, OPP, SCP, OTP) protect your components from current anomalies and thermal stress. The fully modular design allows you to connect only the necessary connectors – especially useful in custom small cases where every centimeter of cable matters.

• 300 W total DC power – sufficient for compact systems with energy-efficient CPUs and without discrete or low-profile GPUs.
• 80+ Gold certification and ≥90% typical efficiency – lower losses, less heat dissipation, and quieter operation under normal load.
• Flex ATX form factor with high power density – about 20% more power in the same volume compared to typical Flex ATX, ideal for tight cases.
• Fully modular design with black "ribbon" cables – easier cable management in SFF systems and better airflow.
• 1× 20+4-pin ATX, 1× 4+4-pin EPS12V, 4× SATA, 2× Molex, 1× Floppy – a full set of connectors for the motherboard, several SSD/HDDs, and older peripheral devices.
• 1× 40 mm internal fan with ball bearing – higher durability under prolonged operation and better resistance at high temperature.
• MTBF 100,000 hours at 25°C and operation up to 5000 m altitude – suggests design with 24/7 and heavier environments in mind.
• Full electrical protection (OVP, UVP, OPP, SCP, OTP) – protects your system from overvoltage, undervoltage, overload, short circuit, and overheating.

Who it's suitable for

This power supply is very suitable for compact Flex ATX systems, office and industrial machines, small servers, network devices, or DIY SFF projects, where physical space and good efficiency are critical. It's not a suitable choice for powerful gaming configurations with power-hungry GPUs, but for energy-efficient platforms and 24/7 operation, it's right on target.

The combination of Flex ATX format, 80+ Gold efficiency, fully modular "ribbon" cables, and Japanese capacitors makes FSP FlexGURU 300W a very sensible choice if you're looking for a reliable and compact power supply. Especially impressive is the ability to get the maximum out of limited volume without sacrificing protection and stability.