There is even a special slit on the top left. You can hide a 12V CPU cable (it is usually located in this corner on most mainboards) and fan cables into it. In other system cases, you often have to stretch such cables over the mainboard.
The cooling of the top part of the case is very serious with two exhaust fans at the back panel and one exhaust fan at the top. There is no chance that hot air might linger inside.
Antec takes a conservative approach to fastening expansion and graphics cards. You have to use screws. Take note that the expansion-slot brackets and the part of the chassis near them are all perforated for ventilation.
The PSU is accommodated without much sophistication. It just rests on four rubber pads, being fastened to the back panel of the case with four screws. So, you have protection against vibrations and can turn the PSU upside down if your model has a horizontal fan. There is nothing else we might wish, really.
5-inch devices are fastened in their bays with screws.
The HDD cages are almost the same as in the Nine Hundred. Each can take in three HDDs that are secured at the sides with long screws. The cages themselves are attached to the system case with four thumbscrews. It means you have to either leave the cage unfastened or remove both side panels in order to take the cage out. This is not handy.
On the interior of the top cage there is a plastic casing for an additional 120mm fan. Unfortunately, it prevents installing HDDs into the cage. But if the other two cages are enough for your purposes, you can use this opportunity to add one more cooling fan.
In the front part of the cage there is a small plastic handle. You can pull it up as in the photo above.
Pull it and you take out a fan filter. The Nine Hundred doesn’t have this, so the bigger model offers small but pleasant advantages over the other models from the same series.
The second difference of the Twelve Hundred’s cages is the small, almost invisible, handle sticking out of the metallic mesh at the front. You can use it to adjust the speed of the fans. With the Nine Hundred, you have to open the case up and get to the toggle on the interior of the cage for that.
If you’ve got a card-reader, you can install it into a 5-inch bay by means of the included rails.
The second and third bays counting from the top are covered with additional brackets besides the meshed faceplates. This helps maintain the consistency of design of the front panel and protect the case from dust.
It was easy to assemble a computer in this system case. There is a lot of room inside and we didn’t find any pitfalls.
We’d like to note it once again that the interior of the system case looks very neat because the cables can be hidden behind the mainboard’s mounting plate. But don’t forget that your power supply has to have long enough cables for such assembly.
And finally, here are a couple of photos of the working computer. The highlighting is very pretty, creating an illusion of three beams of blue lights inside each HDD cage.
The only downside is that the highlighting is rather bright. You can turn it off easily for the top fan, but there is no standard way of doing the same for the 120mm fans.