The single common feature in the design of the T2 and T1 models is the door that covers the open bays on the front panel.
The number of the bays is the same as with the Silentium T1.
This system case comes in one color scheme, too.
The silver color of the case with a few touches of black and the originally shaped front panel won my personal “Cool Looks” prize.
The remaining models do not differ much from each other. They are a compact PC case with a classically-designed front panel and differ only in color.