Antec P193 Advanced Super Mid Tower Shell Case Dual chamber design isolates heat and noise: 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 or Antec's exclusive CP Series power supply Innovative two-layer, sound-deadening side panels and three-layer front door dampen noise and ensure Quiet Computing 11 drive bays 11 drive bays - External 4 x 5.25"; 1 x 3.5" - Internal 6 x 3.5" for HDD Front-mounted ports provide conveinent connections for 2 USB 2.0 ans 1eSATA with Audio in & out compatable with HAD and AC'97. Fits Mini-ITX, microATX, Standard and Extended ATX motherboards.