FSP Mini ITX Solution | Flex ATX 300W 80 Plus Gold Certified Efficiency ≥90% Full Range Active PFC Power Supply (FSPFSP300-57FCB) Flex Guru 300W

Historically i've avoided any computer case that needed a flex ATX PSU. I just have had bad experiences with them being super noisy when u draw a lot of power. The FSP Flex ATX 300W PSU surprisingly changes the game when it comes to my experience.Pros - What more can I say aside from this thing is silent, I have it running in my server with 8x 3.5mm HDD"s running proxmox and it is silent, not a peep.Cons - wish it had a 6 or 8 pin VGA power connector to at least put in a low powered GPU into my rig, guess my RX 6400 will have to do for now.Other than that it does what you expect, provide power to your system, tho I wish it was 80+ platnium or at least gold, bronze is meh.

I tried it , it works properly, but I was wishing it to be a modular for easy installation.

I bought this FSP power supply for use with a Mini-ITX build in a small case. The power supply is nice and small, and that made it easy to install. However I do have a problem with the "modular" description, because it really isn't modular in the same sense as regular ATX power supplies. With regular ATX power supplies, you have multiple sockets on the power supply to plug in only what you really need. The issue with this FSP is that it only has 3 sockets; two of them is for the 20+4 and 12v wiring harness (a combined harness). That leaves one socket for peripherals like SATA and these cables are all multi-plug, so there is no real "modularity" since you still have to plug everything in. I'm only using one SATA drive and I have to use a long cable with 3 SATA power plugs on it! Aside from that, so far the power supply itself has been running good. The fan noise is low, a standard Intel CPU cooler fan is louder in comparison.

Some other reviews say otherwise, but in my case, as well as my pc case haha, it’s actually very quiet FOR A FLEX PSU. Sure there is some noise if you’re very close to it. But if it’s across the room, like a HTPC I hardly hear it, if at all. Powers my 1060 gpu very well, you will have to buy a gpu plug adapter, I I personally got a molex to 6 pin for very cheap on Amazon as well. Very happy with this purchase and will be my go to for flex psu’s if I only need 300w.

Replaced noisy stock ITX case PSU with this Flex ATX 500W and am super happy with how quiet it is.I noticed the PSU I replaced had its fan on the outside near the power blade, whereas this PSU has the fan internally to the outside of your case, so, even mutes the already quiet fan dB level even more.I would give this PSU 6 stars if I could.