The internal design of the chassis has been significantly changed however, with Antec opting for a single- rather than dual-chamber design. This, Antec explained, was simply to make the cable routeing easier, as it’s no longer necessary to completely isolate the PSU in the way that the P180 did. This is because most PSUs use bottom-mounted fans these days so they can be easily isolated by placing them in the lower corner of a case with their own dedicated intake.
The drive bay focus of the case has also changed, with more 3.5in bays and fewer 5.25in bays now available. The cooling available has seen a revamp too with three of Antec’s new silicone-mounted fans acting as exhausts in the top and rear of the case. These are all powered by connections to a small PCB which requires a single Molex connection. In theory, this should lead to less cable clutter in the case.
Source: Bit Tech