The main 925 section appears much like an average mid-tower case, minus the cosmetic top cover, which can actually be transferred from the smaller 915 piece if desired. The entire front of the case is covered in metal mesh with some large plastic honeycomb grid support and a tighter weave nylon mesh filter behind. There are three external 5¼" bays and a small panel at the very top featuring headphone/microphone audio jacks, two USB 2.0 and two USB 3.0 ports. There is also a singular power button with integrated power LED; there's no reset or hard drive activity lights as commonly found on most cases. There's also no chrome trim or contrasting color as even the Cooler Master logo is blacked out and the side panel window is tinted a dark smoke.
The rear of the 925 follows the same layout as most mid-tower designs, with bottom-mounted power supply, eight riser slots plus an extra single slot for non-plug-in adapters or boards, a 140mm exhaust fan and three grommeted openings for liquid cooling tubing. The 140mm exhaust fan is one of only two that are included with the case, although it can also house a 120mm fan in this position. Two black thumbscrews secure each side panel to the chassis.
The bottom feet utilize the side positions so they can be changed out for the sliding rail system if you want to stack on top of another unit. There is a small opening with a slide out mesh filter for the power supply intake and two other smaller grommeted openings for passing through cables or tubing. On the top are three distinct openings for pass through applications and several sets of holes for mounting various sized fans. Cooler Master claims two 120mm fans can be top mounted but from my measurements it appears there are three sets of 120mm fan screw holes at roughly 110mm spacing, two sets of 140mm fan screw holes at 125mm spacing and two sets of 200mm fan screw holes at 155mm spacing. As we'll see in this next section, it probably only makes sense to install fans in this top location if you'll be placing the 915 on the bottom and putting the mesh top in its place.
Let's get a look at the next unit, the 915R.