A Closer Look - Inside

To gain access to the interior of the 904, simply remove the caps screwed onto the pins at each corner of the panel. As it should have been clear by looking at the images I took of the rear, the interior of the enclosure has been anodized black, which contrasts nicely with the fairly bright silver of the aluminum frame. Turning the chassis around, one can see the openings in the motherboard tray. Interestingly enough, there are not nearly as many as in traditional cases. This is simply due to the fact that the drive bay at the front takes up the space usually allotted to the interior of the chassis. In Win has also made all 3.5" drive bays hot-swappable by applying individual brackets to each one, which is nice as you can remove those you do not need to reduce the cable clutter within the 904.


This brings us straight to the next point: With just around 25 mm of actual space behind the motherboard tray, you really need to keep your cables to a minimum. While 25 mm is enough, it should be considered the bare minimum. It looks like In Win is really trying to keep the unit as slim as possible.


On what can be considered the floor of the chassis and toward the front of the case is a spot for a 140 mm fan. You may wonder whether placing a single radiator here to use this area for a water-cooling setup is possible, and while it would theoretically be an option as long as you take care to watch the physical dimensions of the radiator itself, you should pay attention to your system's GPU setup. You may also install two 2.5" drives to the wall of the front. Drives can be mounted onto the trays outside of the case, and a single spring-loaded screw will hold each tray in place nicely. Moving on up, there are three 3.5" hard-drive bays in the very top. The mounting holes on these plastic trays even allow for 2.5" variants to be installed instead.


Turning our attention to the rear of the chassis, the PSU will rest on top of the 5.25" bay at the front, which is also why there is no air vent in the floor, although it results in the power supply's fan facing upward after installation. Above that are the eight motherboard-expansion slots. In Win has, oddly enough, chosen to go with traditional screws here instead of black thumbscrews. There is also a small opening above the top slot, which allows you to route a water-cooling tube through this part and toward the rear panel; that is, if you want to install an external radiator.


All cables within the 904 are sleeved to go with the black interior. Looking at each set, the connectors are all of the standard variety, so you should have no issues connecting everything to a modern motherboard.