Apevia ITX-PFC400W Mini ITX/Flex ATX / 1U 400W Fully Modular Power Supply, Full Range Active PFC 90-264V, AC for POS AIO System Desktop Gaming Server Small Form Factor (Flex ITX) Computer PSU

I really liked my 350-watt PSU (I have two of them in my backup NAS systems for RAID arrays running on the main NAS), but I think I overloaded one and burned it out. Technically, it still works, but it smells awful, so I contacted support. Their response was amazing—they sent me a new one right away. The support from this company is top-notch, and their products are affordable while performing their job well. Since I likely overloaded my 350-watt unit, I decided to upgrade to the 400-watt model to better handle my OpenMediaVault NAS server. My setup includes: - **CPU**: Intel i7-4770 - **RAM**: 16GB - **Networking**: 10Gb SFP+ NIC - **Storage**: 8× 12TB HDDs + 2× 220GB SSDs - **Cooling**: Noctua fans for both the case and CPU - **Motherboard**: A random Shenzhen Machinist board for Intel 1150 socket Since switching to the 400-watt PSU, it has been flawless. It hit the ground running and has powered my system 24/7 without a single issue. I run RAID arrays, virtual machines, and containers, and it's always connected to a UPS. I highly recommend this company and their products—I’d consider them the **Teton** of small-form-factor PSUs. Apevia did a great job with this product, and their support is outstanding. I especially love the **modular design**, which keeps my NAS’s internal cabling much cleaner. The PSU fan is **quiet**—I don’t even hear it. My Noctua fans (2× 80mm for the case and 1× 90mm for the CPU) are louder. Honestly, I wouldn’t bother replacing the PSU fan despite what some content creators suggest—the gains are almost nonexistent. If you’re considering this PSU, **go for it!** It’s an excellent value, and the company stands behind their products.

I've had a few Apevia PSU's in the past in the budget sector, this one kind of falls into that sector when it comes to Mini-ITX power supplies. I would say that so far my biggest gripe on these Power supplies is the lack of a Power Switch on the PSU itself. Meaning that I have to unplug the PSU if I want it to not be powered. The power supplies have so far worked well on 24/7 workloads at around 30% load. The fans don't scream and the units don't get too hot. The fact that these are modular at this price point is really great. I would hope that they continue to provide these power supplies as I Plan to build more systems with these units.

Built a NAS with it, used it for a month or two. It's running on a UPS, so I can see power usage, never above 90 watts. Yet this thing crapped out in the most annoying way: the system was operable, and my SSDs were fine, but HDDs would click/whir constantly and then eventually started throwing checksum errors. I swapped out drives thinking they were bad, but the new ones would do it too Swapped 3-4 drives and every cable with problems randomly cropping up until I finally swapped out the PSU with a cheap 300w I had sitting around, and suddenly all the old 'broken' hard drives are working brilliantly. I won't be using this brand again.

I have always wanted to use a modular in my builds to reduce clutter but most are very expensive. This one fits the bill very well.

Works like a champ in my mini pc. very low noise, fairly low heat. I would purchase again.

Super compact. Fits perfectly in a dell optiplex 7050 sff. Included tons of cords, follow the directions when hooking it up. The PSU fan is very very quiet even under load. A separate 24pin to 6pin dell power adapted was needed to power up the 7050 motherboard. Highly recommend.

You get what you pay for. Mine ran nice for a little while, but died after a move if you have more money, buy something else but if you don’t, this will probably do OK

This power supply works well, comes with nice breakout cables, and fits properly in a 1U ITX server chassis. I've been using it for several months with no issues so far.