Antec P183 Advanced Super Mid Tower Shell Case The power supply resides in a separate chamber to isolate heat and reduce system noise Comes with a power supply mounting adapter to mount either a standard size power supply Innovative three-layer, sound-deadening side panels and front door dampen noise and ensure Quiet Computing. Cooling system: 1 rear (standard) 120mm x 25mm TriCool fan. 1 top (standard) 120mm x 25mm TriCool fan. 1 lower front chamber. Front-mounted ports provide conveinent connections for, 2x USB 2.0 and 1 eSATA, Audion In & Out HAD and AC'97.