Inside the 200R
Taking the panels off the 200R, you will see that there is a brown cardboard box in the hard drive bay, and that the wiring has been run into the main compartment and tied up securely as not to damage anything including the connectors on the ends of each wire.
The 5.25" bays do have the option to use screws at the front, but with this steel tab system, there is good pressure on the devices, and all you have to do is remove the cover and slide the drive in until you hear the tab click into its locked position.
After a gap to allow the fan in the front to blow right into the chassis, there is a plastic compartment that will lock four 2.5" drives into it. Below, and the reason I left the box in, was so you could see the clip in the middle that has a pin on it to lock drives in with just sliding the drive into the slot and waiting for the click.
As I looked into the top of the chassis, I realized that you are going to only be able to fit fans above the motherboard. Unless you get really lucky with motherboard clearance, I don't think you are going to have any luck fitting the H100 unless the fans are external.
All of the risers are in place on the tray, including the two offset ones for Micro-ATX. There is also a large access hole and four holes around it to pass and maintain the wiring through.
On the floor of the chassis to support the PSU, there are raised sections of steel, but no rubber padding there or a gasket at the back, but for this price, I'm not complaining, just pointing it out.
The 120mm fans included in the chassis use a 3-pin power connection to spin the all black, seven blade fans. As for the ventilated slot covers, you have thumbscrews to use to remove the covers and secure your cards.
Behind the motherboard tray you can see there is a good offset for the wiring to easily run back here. The larger part to the right is set in a half inch from the door panel, while the indented area at the bottom and left sides are much closer to three quarters of an inch - plenty of room.
Getting the wiring organized for routing I snapped this image. All of the wiring is black to hide away in the chassis, and you get a Native USB 3.0 Connection, the HD Audio plug, and the wiring for the LEDs and switches on the front. If your board does not have native USB 3.0, you are going to need to grab an adapter.