







⚡ Power your compact build with confidence and quiet precision!
The Apevia ITX-AP300W is a 300W Flex ATX power supply designed for Mini-ITX, Flex-ATX, and 1U small form factor cases. It features separable 20+4 and 4+4 pin connectors for broad motherboard compatibility, essential SATA and Molex ports, and a quiet 40mm double ball-bearing fan with thermal speed control. Equipped with a full industrial safety suite and a manual 115V/230V switch, it delivers reliable, efficient power for compact gaming PCs, HTPCs, and servers.





| ASIN | B0D96YD2SD |
| Best Sellers Rank | #208 in Computer Power Supplies |
| Customer Reviews | 4.1 4.1 out of 5 stars (72) |
| Date First Available | July 15, 2024 |
| Item Weight | 1.76 pounds |
| Item model number | ITX-AP300W |
| Manufacturer | Apevia Corp |
| Product Dimensions | 5.91 x 1.59 x 3.21 inches |
A**W
Great for smaller ITX cases
Needed a flex psu for a mini ITX gaming pc case. This was recommended as a bundle with the case so I got the bundle and I’m glad I did. This psu fits perfect and has worked without any problems. The case I purchased is tiny so not much room inside for cable management and this psu has a lot of cables. It is not modular so you can expect tight fits in smaller cases.
G**F
Great for 1U server chassis
My server has been going strong now for about 4 months and this power supply is doing a great job. I can never hear it and it is constantly providing enough power to my system. The cables are the right lengths to get where they need to go, specifically the fan power connecters. I absolutely love this power supply and with definitely come back for another if I end up building another server.
A**V
Died in a month
Did cricketing sounds from first start. Worked a little under 100W load in a server with Minisforum motherboard. After a day, stopped reliably start, did require 5-10 "replugs". Fits okay for a typical sff build. Died in a month, thanks goodness all components connected are still working. Replaced with other manufacturer 500W bronze rated flex itx psu.
R**O
Small, clean, fits in my Dell Vostro 270S SFF PC
Ordered this as a replacement for the power supply in a 12+ year old Vostro 270S small form factor PC that I use as an HTPC. This PSU is actually smaller than the original PSU that came with the Dell, so it easily fit with room to spare. I had to use a sheet metal nibbler to resize hole for the power outlet cable a bit, as it was slightly off from the location on the original PSU. I expect this will run cooler than the original and last longer as Dell PSUs are notorious for poor quality, especially that era. Just installed it a couple of days ago, so can't tell you about longetivity yet, but will report back if something happens.
J**N
Good little power supply
Good option for small form factor computers. Wish it had more flexible mounting options though. Had to duct tape mine down.
E**E
Size and an upgrade of PSU for ITX motherboard.
I had a problem with the Apevia PSU powering up an old legacy LGA775 motherboard as it would run for 1 second and then power off. A replacement PSU did the same thing but both worked fine with a newer ATX LGA1155 motherboard I had as a test bed. The original LGA775 motherboard works but only with the original 150 watt PSU so my guess was there's some compatibility issues and not the fault of the Apevia PSU. As I'm upgrading to a Mini ITX LGA1155 board due next week from Amazon, I'm pretty confident the 300 watt Apevia PSU should work with the newer motherboard and doubling the power for a 25% increase in size will fit my ITX case. Unused Apevia to be returned to Amazon for refund.
A**R
Very good
Ok
J**H
worked great out of the box
Bought a higher end model from another brand and it died immediately. Heard great things about this budget Apevia (and they had cool ITX PC cases back in the day) . After pulling it out of the box, i could see the build quality was very good. Cable thickness and length was adequate for a SFF build with not too much excess wires. Wires are easily managed and can be bundled and either zip or velcro tied together to push out of the way. Big thanks to all black and not the "ketchup and mustard" styled cables for such an inexpensive PSU. Overall super happy with the quality and build. Not pushing any power to this to stress it by any means, a 5700g and a single NVME on an iTX B450 board. Might add another 2.5" SSD or a 3.5" spinning disk but that would encroach on the 300w limit. Ill be highly considering the more powerful 500w+ variants on my future ITX builds.
B**7
I installed this inside an A09 mini-itx case. This is a computer repurposed as a backup media player connected to my home SMB shares on the NAS. It's relatively quiet, and since this pc is about 10-12 feet away, the tiny rear fan is relatively inaudible. It's currently powering an old 4th-gen Intel processor on an Asus H81 motherboard with 16GB of RAM. I small 126GB SATA SSD is sufficient for the OS and some apps since I do not intend to run or add any additional programs on this computer. This is just a media player fallback machine, just in case the Roku Media Player is being wonky with my shared files. Realistic continuous power from this PSU is about 240W (I wouldn't push it closer to 300), but it is relatively sufficient since the entire setup I'm using this on probably uses only 60-90W most of the time, with peaks not exceeding 130W = so lots of headroom. Tested this with a 75W GTX1050 with OCCT and no faults after an extended stress-test run. However, I removed the discrete GPU in favour of the iGPU (HD Graphics 4600), since it was already more than sufficient and to minimize heat in the chassis as well.
R**H
high quality psu, does exactly what i purchased it for, will update my review if I encounter any issues, but so far it is powering my 1u server computer, and everything in the case is fitting correctly, thermals are adequate given the form factor.
S**E
Does what is says i does. Used it on my test bench to set up 2 retro gaming motherboards. It will now go into a small form factor build.
S**.
Not much to say. The power supply works as expected and fit tightly but successfully in my very small mini-itx case. Seems like decent value for the price.
A**S
After using a couple of the other unnamed brands and getting DOA after DOA, I tried this one. It worked straight away. I ordered another one and it also worked. So, it's a flex ATX power supply, it's cheap, it actually works, and it's not overly loud... what's not to like?
Trustpilot
1 week ago
2 weeks ago