Best NAS cases for sleek at-home storage

So, you’ve decided to build a DIY NAS. And when making a NAS, aside from the motherboard and storage drives, the case is the most critical piece of hardware. It has to be spacious enough to house the board and other hardware, it has to have enough storage bays for your current needs and (possibly) for future storage upgrades, and it needs to fit into your budget.

Well, below, you’ll find the best NAS cases based on multiple factors. We have the best cases by form factor, a couple of excellent budget cases, NAS cases with hot-swap storage bay support, even a pair of rackmount NAS cases. Let’s begin with the big boy.

1. Fractal Design Define 7 XL: Best full tower case for NAS

Drive Bays
2× 5.25″
6× 3.5″
2× 2.5″
Expansion Slots
14
GPU Clearance
359 mm
Total Fan Mounts
11

Going for a full tower case probably means you need a ton of storage drive bays, and the Fractal Design Define 7 XL is built to house a metric ton of hard drives. The case is vast, and, by default, it has enough room for up to 18 HDDs and five SSDs. Yup, that’s right, you can shove more than 20 storage drives into the Define 7 XL. This makes it a top choice in the full tower segment but also the top overall choice for advanced users.

This case is all about fitting as many storage drives as possible, but it isn’t a one-trick pony. The Define 7 XL features pretty solid airflow, with three (two at the front, one at the back) case fans included with the case, room for up to a 480mm radiator and other components included in custom loops, and two 5.25” drive bays for those needing one or more disk drives. 

As for the build quality, it’s top of the line, and the case is also a breeze to work in. It supports E-ATX and SSI-EEB (server form factor) boards, with cable management being one of the best in class. And the design is perfect for a NAS. All-black, with subdued lines, a small number of details, and without over-the-top elements. Overall, this is the best choice for a storage-heavy NAS build. 

If you want a case with a slick design along with enough room for a metric ton of hard drives, check out the Fractal Design Meshify 2 XL. It’s the same as the Define 7 XL inside while having the signature Meshify front panel and a glass side panel. And those on a budget should look at the Phanteks Enthoo Pro. This cheap full tower case features a neutral design and room for up to 13 storage drives. 

2. Fractal Design Define 7: Best mid-tower case for NAS

Drive Bays
1× 5.25″
6× 3.5″
2× 2.5″
Expansion Slots
14
GPU Clearance
315 mm
Total Fan Mounts
9

The regular Define 7 is like the XL, only smaller. This includes neutral design, excellent cable management, internal design, superb build quality, and a focus on storage. The regular version can house up to 14 storage drives. Not as many as the XL, but still, more than enough for almost any kind of NAS build. You also get three pre-installed case fans inside the chassis. Overall, the best choice in the mid-tower segment. 

If you want a cheaper alternative, there’s the Antec Three Hundred Two. This is another neutral-looking case, perfect for a NAS. It’s noticeably more affordable than the Define 7, and it comes with room for eleven storage drives and multiple 5.25 drive bays. Finally, the Meshify 2 is here if, for whatever reason, you want a mesh front panel and glass side panel for your NAS build. 

3. SilverStone CS380B: Best NAS case with hot swap drive bays

Drive Bays
2× 5.25″
8× 3.5″
Expansion Slots
7
GPU Clearance
241 mm
Total Fan Mounts
9

Being able to fit more than 20 storage drives inside a case is cool and all, but that won’t matter if you need a case with hot-swap storage drives. If that’s the case, the best NAS chassis with the hot-swap feature is the SilverStone DS380B. This is a relatively compact mid-tower case with eight how swappable drive bays.

Hot-swappable bays support both 2.5” and 3.5” drives, both SAS and SATA. The case comes with support for water cooling, two 5.25” drive bays, and lockable front doors. Build quality is decent but far from superb, and the case only supports the eight storage drives mentioned above; there aren’t any internal drive bays. Also, fan support is pretty limited, with room for one rear and two side fans. 

4. SuperMicro SuperChassis 721TQ-250B: Best mini-ITX NAS case with hot swap drive bays

Drive Bays
8× 3.5″
2× 2.5″
Expansion Slots
1
GPU Clearance
Total Fan Mounts
1

Here’s another case with hot-swap drive bays, but this time in the ITX form factor. The SuperMicro SuperChassis 721TQ-250B (what a name) is the best mITX hot-swap NAS case on the market. First of all, this chassis is built like a tank. The best features are the perfect build quality, neutral design, and perfect internal layout with excellent cable management.

You get four hot-swap drive bays with support for 3.5” drives (both SAS and SATA) along with two internal bays for 2.5” devices. The housing also comes with a 250W 80Plus Bronze PSU and one slim 5.25” drive bay on the top of the chassis. Overall, this is a brilliant ITX hot-swap chassis, with the only negative being its high price.

If price is the issue, or you want an ITX case with room for more than six storage drives, check out the SilverStone DS380B. While a bit larger than the SuperMicro chassis, the DS380B comes with eight hot-swappable storage bays (SAS/SATA), four internal 2.5” bays, excellent build quality, three pre-installed case fans, and a Kensington lock for the front door. The best thing is that this one’s cheaper than the SuperMicro chassis. Note that, with its 21.6 liters, the DS380B is at the upper limit of what we would consider an ITX chassis. 

5. Fractal Design Node 804: Best mATX NAS case

Drive Bays
8× 3.5″
2× 2.5″
Expansion Slots
5
GPU Clearance
320 mm
Total Fan Mounts
10

Now, if you don’t need hot-swap drive bays, the Node 804 from Fractal Design is probably the best mATX case you can get for a NAS. First of all, the case looks subdued and is perfect for a NAS machine. Build quality is top-notch, which is expected from Fractal Design. As for the storage bays, you have room for up to 12 drives (eight 3.5”, two 2.5”, and two 2.5”/3.5”), which is great for a case compact like this one. 

The Node 804 is quite spacious. Just make sure to install the rest of the PC before starting to fill out the storage bays. It comes with three case fans pre-installed, with room for up to 10 fans in total. In other words, excellent cooling potential. Overall, this is a superb mATX NAS case, and if you need a compact case, smaller than a regular mid-tower but not as compact as a Mini-ITX, the Node 804 is a perfect choice. 

6. Thermaltake Versa H17: Best budget NAS case

Drive Bays
2× 3.5″
2× 2.5″
Expansion Slots
4
GPU Clearance
350 mm
Total Fan Mounts
5

If you’re on a tight budget and need a cheap case for your DIY NAS, just hit eBay and find a cheap case with tons of storage bays. But if you want a new case and are building a beginner’s NAS build that features up to four storage drives, check out the Thermaltake Versa H17. First of all, we like the neutral design. It’s perfect for a NAS. 

Next, you get pretty solid build quality, room for up to five case fans (rear one is pre-installed), pretty roomy insides with more than serviceable cable management, even a PSU shroud. The case supports only four storage drives (2×2.5” and 2×3.5”), but for “my first NAS,” this is more than enough. 

If you want something even cheaper, check out the Rosewill SRM-01B. This one has below-par build quality but is much cheaper than the Versa H17 and also comes with four storage drives. And, you also get a variant that comes with a 400W PSU and costs about the same as the Versa H17. A pretty solid deal if you ask us. 

7. Fractal Design Node 304: Best ITX NAS case

Drive Bays
6× 3.5″/2.5″
Expansion Slots
2
GPU Clearance
310 mm
Total Fan Mounts
3

If you’re looking for an ITX case without hot-swappable drive bays for your NAS, the Fractal Design Node 304 looks like the best choice. This is a Mini-ITX cube case built for something like a NAS, Plex server, etc. It’s compact, with a solid build quality and lots of room to build in. It comes with three drive bays with enough space for up to 6 2.5”/3.5” drives, which should be more than enough for any HTPC or Plex Server, and most NAS builds. 

The case has pretty good airflow, with a mesh side panel and three pre-installed case fans (two 92mm fans and one 140mm fan on the rear). Overall, this is another bullseye from Fractal Design. A perfect ITX NAS case with plenty of room inside, excellent cooling potential, six storage drive bays, excellent cable management, and superb build quality. Last but not least, the case’s quite affordable for an SFF chassis. 

8. Rosewill RSV-R4000: Best rackmount NAS case

Drive Bays
3× 5.25″
8× 3.5″
Expansion Slots
7
GPU Clearance
Total Fan Mounts
8

Last but not least, we have a rackmount case pick. The RSV-R4000 case from Rosewill is quite affordable for a rackmount server case while featuring pretty solid build quality and an excellent cooling solution. The case in question features a 4U form factor and comes with four pre-installed fans. On top of that, you get eight drive bays, a lockable front door, and three 5.25” drive bays that can transform into a single 3.5” bay with room for four hard drives. In other words, the RSV-R4000 can host up to twelve storage drives. 

If this version is too large for your needs, the Rosewill rackmount family has cheaper cases that come in 2U form factor and include anywhere from four to eight drive bays. On the flip side, you have larger 4U designs that can fit up to 15 storage drives. And if you want an alternative, you have the SST-CS350B from SilverStone. It’s pricier than the Rosewill solution, but this chassis comes with five hot-swappable drive bays, three internal bays (2×2.5” and one 3.5” drive bay), a bit better cooling solution.