A Closer Look - Inside

To gain access to the interior, simply remove the thumbscrews holding each tempered glass panel in place. The 901's general layout within is actually pretty traditional, with the board in the top-left, drives in the top-right, and the PSU in the bottom-left corner. There is a large opening in the motherboard tray. It allows for unobstructed access to the mounting plate your cooler may use.


You may install up to three storage drives within. These can consist of a mixture of 2.5" and 3.5" drives. The larger trays can hold smaller drives as well, so you can be flexible if your intent is to, say, install three SSDs. The two larger bays are also hot-swap capable, so you could quickly pull out drives and replace them if need be.


Just like with the 904, you may place a cooling fan into the somewhat elevated floor. To do so, simply unscrew the firmly attached, spring-loaded thumbscrew and pull out the tray. The fan's tray includes a dust filter, so you will not have to worry about grime making its way into your chassis through the bottom.


Continuing on with the design elements of its larger brethren, the 901 offers enough space for a single optical drive bay on the floor, underneath the PSU bay. As this is a slimline variant, In Win pre-installed a PCB with all appropriate SATA connectors in place, which eliminates the need to route your own cables to the drive—a small issue we had with the 904.

Above that is the simple, but effective PSU bay and the motherboard area with its two expansion slots. Each slot is protected by an individual, reusable cover a traditional screw holds in place.


Before we dive into the assembly process, let us take a quick look at the cables. To keep with the black interior of the chassis, all of them come sleeved, and most of them are of default variety. The only exception is the slimline power cable. Instead of opting for a Molex or SATA plug, In Win went for a floppy connector instead, which is weird as the plug is definitely on its way out.