Inside of the case is an accessory box that includes the usual bag of screws and an instruction manual. Also included is a 3.5 to 5.25 bay adapter and a 3.5 bay cover to take the place of the existing should you chose to add a media card reader or a floppy drive. Popping off the front cover, which isnt necessary in order to install a drive, you can see that the front fan is fully filtered as well. On the side you can see that opening is filtered as well. It is listed as an optional location for a fan, though I would just skip it myself.
3.5 drive caddies are included that support 2.5 drives as well. The MK-1 has six 3.5 bays and four 5.25 bays plenty of room for expansion. Turning the case around I am happy to see there is plenty of room behind the mainboard tray. This makes it much easier to route cables and keep the build clean. There is also a large cutout which should make it easy to swap out CPU coolers if you need to at a later date. Note the built-in USB 3.0 support, make sure your mainboard has the headers for it. The other usual front panel cables are here as well and look to be well finished.
On the next page we will install some hardware in this case.