Interior Inspection:
With the side panels removed we can see the interior of the NZXT H2 Classic Series Silent midtower case. In the below left image is the main area of the case. You can see the wires coming out from the cable management holes, the large opening where the CPU will be located (for easy CPU cooler upgrades), three 5.25" easy tool-less bays, and a ton of 3.5" drive bays. In the below right image, we see the opposite side of the case. We can see the bundled wires, as well as other places to attach tie wraps for a clean looking case. There is a large space (25mm) between the side panel and the other side of the motherboard for excess cable/wire storage.
The inside of the NZXT H2 Classic Series Silent midtower case looks very nice. The interior is painted black even though it will only be seen to the installer, as there is no side panel window. In the below left image is the motherboard area. There is an included 120mm fan to help exhaust the hot air from the case. There is also a large square hole that ensures the whole motherboard does not need to be removed for CPU heatsink installation/maintenance. In the below right image is the underside of the SATA hard drive enclosure found on the top of the case. The power and data cables are already hooked up and routed.
In the image below is where the 5.25" and 2.5/3.5" devices are installed. After seeing this area, I am not sure what is with all of the black thumbscrews included with the bundle of accessories. The 5.25" bay devices use clips to hold the drives in place, and the 2.5/3.5" devices are held in place with drive trays. Each drive tray can use one screw in the middle, but still there are way more thumbscrews than necessary.
The bottom of the case has fan grills for the power supply, and one additional fan (not included), as shown in the image below. There is a removable filter underneath that will block any dust and debris from getting into the case via bottom mounted fans.