Installing components in the HAF 912 isn’t as easy or quick as other cases, but still doesn’t require anything too difficult. The first thing to do is install the motherboard standoffs and secure the motherboard to the case.
You should also note that there is a LOT of room for the CPU cooler cutout, making it easy to install/remove any size cooler.
Installing the expansion cards are pretty simple, just remove the screw, remove the reusable cover, then attach the drive and secure it with the screw.
The next step isn’t required, but you can still do it if you like. This is with the larger hard drive cage to either rotate it 90 degrees or remove it so that the case can support larger video cards. You first have to remove the four screws on the opposing side of the drive cage, then simple press the two black levers towards the drive cage and pull out.
The cage should easily come out. If you want to install it 90 degrees you will also have to remove the front bezel so that you can install the four screws which you removed before.
Installing the hard drives in the slots, whichever position they may be in, is pretty simple. Just attach two drive rails and slide it into a slot.
If you haven’t already removed the front bezel, you’ll need to do so now to attach the 5.25” devices. I was a bit confused at first to remove the panel because the manual said just to pull on the sides to remove it, but this wasn’t the case. I also tried pulling it from the bottom, which most bezels can be easily removed this way, this wasn’t the case either. So you have to manually press on the clips locking the bezel to the case. Once you get the 2-3 pressed, the bezel should come off.
After you remove the bezel you can remove the designated bay covers, reattach the front bezel, then slide the drive in and use the tool-free device to secure it.
If you take the time to manage your cables, I did not; you should be well off for a great case.