JONSBO N2 Black NAS ITX Case 5+ 1 Disc Bay Mini Aluminum Case, Built-in 12cm Fan, Fits SFX Power Bite (up to 150mm), 65mm CPU Cooler, Integrated Top Cover Removable, Black

This is the best small factor NAS case there is. I tried a few and this is leagues above the others. Build quality is great, almost all brushed metal construction. Style is timeless. Easy access to hot-swap drive bays. Good separation of mobo and drives. Good airflow. Easy to build. And takes a tiny amount of space. The only things that would make it even better are: 1 - A better built-in fan for the drives, I swapped it for a silent arctic cooling one. 2 - Slightly better layout that may allow for more space between the drives and fan, and perhaps the PSU. But this might come at the expense of the small size.

I use it for TrueNAS with 4x 3.5 inch drives, 1x 2.5 inch SSD boot drive and an M.2 NVMe cache drive on the motherboard. You would think the build process and cable management would be a challenge in this form factor but it was very easy to build in with well designed spaces for cables to be tucked away without hassle. Great design and highly recommended for a DIY NAS solution. Fits nicely behind my TV.

Great little case! Just put it together and it was really simple. Has instructions on cable management and fit everything I needed in it. Time will tell if the hotplate holds up but so far so good. The fan it comes with is pretty loud since the plate runs it at full speed, but I’m going to replace it with a 15mm Noctua with the quiet cable. If you’re going to have this on your desk, I’ll plug the fan it comes with into the motherboard instead for PWM control. Tip: Enable Hot Plug in PCH Storage Configuration, BIOS!

I purchased this PC case for a NAS build with the hopes that I could replace an aging "server" I cobbled together years ago. Reality far surpassed my hopes because to my surprise, this PC case is probably the highest quality case I've ever built with. From the design decisions to the ease-of-installation of components, it was a joy to with within the constraints that this case imposed. I was easily able to install 4x IronWolf Pro HDDs in the bays (it supports a 5th drive but my motherboard does not), and the whole thing fits in the same footprint as my previous CM case and supports almost twice as many HDDs! If I had to fault one thing about it, it's the mesh grill on the exhaust fan; it makes the fan suuuuuper loud compared to other PCs I've built, and it's simply just due to a airflow restricting mesh grill. If you're purchasing this, upgrade the fan with a Noctua (almost a no-brainer) and get 2x non-mesh fan grills for both sides of the fan, or just go without the grills (your choice). Other than that, I would gladly purchase another one of these cases!

Construction on this case is awesome. This was my first Mini-ITX build for a home media server running Unraid. Small footprint and not too difficult to work in even with the limited space