FSP FlexGURU 300W Flex ATX Power Supply Review (Page 3)

| Jan 3, 2020 at 12:48 pm CST
Rating: 91%Manufacturer: FSPModel: FSP300-50FCB

Hardware & Documentation


The accessories for the FlexGURU are quite scant, which is understandable as it's a tiny unit. Here is everything you get in the accessory package.

  • FlexGURU User Manual
  • 4x PSU external mounting screws
  • 2x internal bracket screws
  • Internal multi-position mounting bracket

The metal bracket has two positions where it can mount to the FlexGURU supply to allow flexibility to the chassis fitment and help ensure it will fit your build. One thing absent from the FlexGURU packaging is the AC power cord, as our unit did not have one in the package. This could be an omission based on the fact that many countries use different wall plugs, and it is up to the user to secure one, but it is essential to note.

FSP FlexGURU 300W Flex ATX Power Supply Review 58 | TweakTown.comFSP FlexGURU 300W Flex ATX Power Supply Review 59 | TweakTown.com

Here is the connector breakout supplied by FSP and gives you an excellent pictorial reference for what we will be showing in the images below of the cable sets which come packaged with the FlexGURU.

FSP FlexGURU 300W Flex ATX Power Supply Review 08 | TweakTown.com

Here we have the main motherboard lead, which connects to a single point on the FlexGURU PSU. The main harness has a 20+4 pin for the primary ATX connection along with a 4+$ main EPS connector. As you can see, several leads pull from each pin since the PSU side connector is very compact and uses far fewer pins than on the motherboard side connectors. The cable has a small white connector that plugs into the PSU to complete the necessary connections.

FSP FlexGURU 300W Flex ATX Power Supply Review 09 | TweakTown.com

The second modular connector breaks out to the following.

  • 4x SATA ports
  • 2x PATA ports
  • Floppy port

This cable is what I was referencing in regards to the fully modular statement. If you need any of the connectors supplied above, you must plug in the cable, which comes with all of the connectors in place, so in reality, unless you have fully M.2/AIC storage, you will have the full array of cables to manage. While technically modular, that term is usually reserved for having segregated leads which are removable for a chosen connector type.

Also, I think it's time for the floppy connector to disappear or at least be included as an adapter. I did speak to FSP, and they were looking into improving the output leads based on feedback from users. I do think having at least a single 6+2 connector option would be a great addition. Many users likely would not be comfortable deploying a GPU using adapters, and most Flex ATX PSUs at this level do not offer a PCIe power adapter.

Last updated: Jan 4, 2020 at 06:11 am CST

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Shannon started his PC journey around the age of six in 1989. Now till present day, he has established himself in the overclocking world, spending many years pushing the limits of hardware on LN2. Shannon has worked with design and R&D on various components, including PC systems and chassis, to optimize the layout and performance for enthusiasts.

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