In the center of the case is the expansion card support rail. This rail is to help relieve the stress on both the card and the motherboard. The rail can be installed in 1 of 3 spots for short to very long cards. The rail can also be removed completely.
Moving around to the right side of the case you can see the back of the motherboard tray, the SATA back plane, and the fan controller connectors.
Looking closer to the back of the drive cage you can see the SATA data connections. The power is supplied by molex connectors.
In front of the drive cage is the wires for the fan controller. There are 4x short leads for the drive cage fans and 2x long leads for the rear fans.
The motherboard tray is removable as well. This is nice as it lets you have more room to work when mounting the motherboard. The tray is easily removed. First remove 2 locking screws off the back of the case, then slide the tray forward. Once past the slide locks (slots at the top of the tray) lean the tray out of the case.
The motherboard tray has several cut outs in it for wires and cooling. The cooling cutouts that are at the same level of the CPU socket are not rounded, and I would suggest not running any wire through them. The lower hole, just below the motherboard, has a plastic insert with rounded edges, so no chance of a cut wire here.
Behind the front panel there are the intake filter screens and the fan controller.
The fan controller is a simple 3 position switch for high 1500 RPM, medium 1240 RPM, and low 1020 RPM. The stock setting for the controller is medium. The only flaw to this is that to adjust the fans you have to pull the front cover off. Doing this is not hard, quiet easy actually, but it’s that you have to take it off. So if you’re not a ‘set it and forget it’ type then you might want to look at the drive bay controller.
The fan screens are easily removed for cleaning, and yes even the screen holders are aluminum.