
Case open

HDD cage

Motherboard area

5.25" Rack
The inside of the case is accessed by removing three thumb screws on the back of the unit, and removing the cover. The size of the inside of the case is big enough for a full ATX motherboard, meaning that while mini-ATX boards can fit, one isn't necessary for this case. There are seven full-size PCI slots on the rear, meaning that half-height PCI Express video cards aren't required as well.
There are three 5.25" drive spaces for the optical drive rack. With a single door cover on the front, that means only a single optical drive can be installed. While this is sufficient for most users, the ability to play back both Blu-Ray discs and have a DVD burner to burn media, but the design of the case precludes this from happening. The DH-101 has room on the HDD cage for three 3.5" HDDs meaning that you could have up to 2TB of HDD space if you wanted.
The rear of the DH-101 has seven slots for PCI or PCI Express devices and the aforementioned two 60mm fans that cool the case. Above the fans is a open case warning device which is good for security but totally unnecessary on a HTPC. The cards are held into place by a plastic cover that is unlocked from the outside of the retention clips. Holding the HDD and Optical drive bays into place is a retention bar. To remove them you need to unscrew the retention bar and remove the racks.