A Closer Look - Interior
The interior of the Define R4 is full of features that making computer building a cinch, starting with the modular hard drive cages. The top cage houses five bays while the bottom one holds three. Both cages can be completely removed for unobstructed airflow from the front fans, or to make room for a monstrous 430mm graphics card should one ever hit the market in the future. The bottom cage can also shift slightly rearwards into an alternate position to make room for a front radiator. Like the PCI slot covers, all of the hard drive sleds are painted a glossy white and feature rubber feet to discourage vibration in large spinning drives. Having these rubber feet means that the drives will need to be screwed in by hand. You'd have to deliberately try to break these sleds, which are metal instead of the typical flimsy plastic. I’m glad to see that Fractal implemented rotating drive cages on the R4, which is a nice step up from the fixed array on the Define R3. What I don't see are tool-less 5.25" drive cages, which can be nice time savers.
Behind the hard drive cages is a massive cutout that runs the entire height of the case and offers tons of room for routing cables. This is an especially handy place for stuffing all those unwanted PSU cables that you want out of sight and out of mind. More large cutouts with rubber grommets circle the motherboard area to ensure that your wiring has minimal impact on the interior looks. I especially appreciate the large amount of room available above the motherboard area, giving me plenty of space to wiggle a 12V CPU connector into place with a heatsink already mounted. You'll also notice the convenient thumbscrew mounting of the rear PCI slot covers. Breaking tabs and bending fingernails are a thing of the past when it comes time to mount your GPU and other cards.