A Closer Look - Inside
Corsair has also done an excellent job in maximizing cable-routing and hiding possibilities within the Graphite 780T, which is as expected because it essentially uses the same frame and layout as the 760T. It comes with a large number of hooks one may attach unwanted leads to during assembly. You should also run into no problems with putting even the largest GPUs or PSUs into the chassis.
Behind the motherboard tray are a whopping 40 mm worth of space for cable management—a lot of room between the motherboard tray and side panel to route leads to their appropriate connectors. You will also find three plastic frames for individual 2.5" drives. Each of these can be removed without the use of tools because of a clipping mechanism. Due to the shape of the chassis, the 780T can only hold three of these, while the 760T had enough room for four.
The area at the bottom of the front stores all hard drives. This time around, Corsair ships the chassis with the two hard-drive cages on top of each other, as the Graphite 780T's voluptuous design does not allow the cages to be placed next to each other. If there were a third cage, it would fit in here as well. While you could leave these to hang off the 5.25" bays, which would keep the bottom free, such a constellation is only interesting to modders as there is no way to properly secure it.
You may also remove both cages completely, to give way to both fans in the front. The area can also hold a 240 mm, 280 mm, or 360 mm radiator, which makes the Corsair Graphite 780T an excellent choice for those who plan to use extreme multi-looped liquid-cooling setups.
The PSU bay in the bottom of the rear comes with a large air vent, which gives even long units access to as much fresh air as possible, although things could get a bit tight if you were to install a potent unit with the hard-drive cages in their default position. Above the bay are the nine motherboard-expansion slots, each protected by an individual cover that is in turn held in place by a thumbscrew. The exhaust fan at the very top of the rear takes up most of the space there.
Taking a peak at the ceiling, it becomes apparent that you should also be able to install a 360 mm radiator there without loosing access to both 5.25" drive bays, as long as it is a slim variant, which also makes attaching fans to the ceiling instead an option as they will not get in the way of anything.
The Graphite 760T's cables are sleeved black to go with the overall color scheme. Each individual plug is of the default variety, so you should be able to make the most of the I/O by connecting each without running into any problems.
The fan controller is powered by a SATA plug and features four PWM connectors for your cooling fans. With the exception of the power LED, every lightning elements also has its cable run into the same Molex connector to draw power straight from the PSU.