The SilverStone Nimiz SST-TJ03 Aluminum Case features a swing away front bezel door which shields the drive bays when not in use. A total of 6 x 5.25" external drive bays are available with no bays available for any 3.5" external devices. Consumers who wish to use 3.5" devices will have to purchase the SilverStone SST-FP51 Transfer Bracket which converts 3.5" to 5.25". It is a real shame that one of these devices is not included as a stock option considering the price of this case. Instead of using a standard locking mechanism, the swing away door has two embedded magnets that secure the door to the chassis. I found the use of magnets, the weakest part of the entire case design since at the slightest jolt or tilt the door pops open freely. One interesting aspect of the door is by default it opens from left to right. Consumers who wish to change this configuration can easily reposition a few screws to have the door open in the opposite direction.