Installation
We do not have a watercooling system to install, so we were unable to test how it would work in the Aurora. However, using standard components, we installed the other things.
Hard drives
The hard drives use a rail system that is similar to the one in the Coolermaster Centurion that we just reviewed recently. While it works, it is very tight, and difficult to take out. Other than that, there were no major issues.
Optical drives
The optical drives use a slightly different rail system. First you insert the optical drive, and then you adjust for length and then push down on the lock to secure the drive in place. The image below shows the rails in two different positions to illustrate this. The system is nifty, and seems to work pretty well. Although strap on rails like the hard drives would have been a lot more intuitive (sadly I had to consult the manual).
Expansion cards
At the top of the image, you will notice that there is a clip (currently loosened) to secure the metal bracket that goes down across all the PCI/PCIe slots. Remove that bracket and install as many cards as needed until you are content. It's a nice system, as you only need to clip one thing instead of everything.