System Build with the S340

With the trend toward eliminating 5.25” bays I’ve had the pleasure of assembling a number of systems in wide-open enclosures lately. With nothing obstructing any component installation the process is extremely easy, and with this S340 I had the main components installed in no time.

Interior of the S340 is wide open without any drive bays on this side

I’ll briefly pause here to talk about the side panels (come on, it's a case review after all!), which is a pet subject of mine when analysing enclosures. If you frequently swap out components, the quality and ease in removing and replacing side panels becomes a big part of the overall experience.

Back when I reviewed the NZXT H440 Razer Edition I was not impressed with the side panels and thumbscrews, as they were difficult to remove and would often stick into place. This couldn’t have been further from the experience with this S340 enclosure. I don’t know how much the glossy white finish played a role, but sliding the door panel on and off was very smooth for a steel enclosure. I’ve already gushed about the window plastic on this but I can’t get over how good this door is. (There, I’ve said it. I love the side panels on this case. Moving on.)

There is room for large radiators up to 280mm on the front fan mounts

There is a metal shield to the right of the motherboard that protrudes into the case interior, providing both a space to hide cables from the front and additional room for routing things behind the motherboard tray. This shield comes out far enough that I initially thought it would pose a clearance issue with my MSI R9 290X Lightning card (a BIG card), but this didn’t end up being the case. There was still a bit of space between the back of the card and this shield, and there is plenty of space for longer cards within the S340 as well.

The filter for the front fan mounts slides out from the top

Along with 120mm and 140/120mm fan mounts on the back and top respectively, there are a pair of 120/140mm fan mounts inside the front panel. This area is vented from the top and bottom, allowing the clean appearance of the case front. These fans mounts are protected from dust by a screen filter which is attached magnetically, and simply slides up and out of the vent on the top of the case.


The power supply is mounted down below the motherboard in an area partitioned off from the rest of the enclosure. This is identical to the design of the H440, and it has the advantage of providing the perfect place to hide cable mess from the power supply. The PSU mounts first to a removable bracket, and then slides into place secured by four thumbscrews. Once installed there is plenty of room for power cables behind the partition covering this area.


The storage options for the S340 are limited to three 3.5” hard drives located behind behind the front of the case, and two 2.5” SSD mounts up front under the motherboard (identical to the H440 again here).

The 2.5” mounts sit atop the partition covering the PSU

First we'll look at the front 2.5" mounts, which are removed with a single thumbscrew each and slide out easily. Installation was as easy as possible here, and routing for the power and SATA cables is ideal with cutouts positioned behind the drives.

An SSD mounted to one of the slide-out 2.5" drive trays

Next we'll look at 3.5” hard drive support, and with these mounts I finally found something I didn’t like with the S340. It’s easy to slide a hard drive in to one of the bays, but securing it requires removal of the front panel (installing a third drive requires screwing it directly to the case floor below this bracket) . This isn’t especially difficult but it would have been nice to see the same HDD trays from the H440 here. However, considering the considerable price difference between this and the H440, it's really not so bad.

The 3.5" drive bracket is located in the back of the enclosure

Finishing Up

I used an ATX motherboard for this build, and there is support for both micro-ATX and mini-ITX if you’re so inclined. The build process was very smooth, and I finished the process before I could think of taking more photos. Routing cables was painless with plenty of room behind the motherboard tray, and overall I really enjoyed the build process. Every step of the way this felt like a premium enclosure that would cost a lot more.

Now it’s time to look at the finished build and test it out!

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