COOLER MASTER COSMOS II RC-1200-KKN1 Black Steel ATX Super Tower Computer Case Motherboard Compatibility: Micro ATX / ATX / Extended ATX / SSI EEB / SSI-CEB Front Ports: USB 3.0 x 2, USB 2.0 x 4, E-SATA x 1, Audio In and Out 120mm Fans: Top: 120mm black fan x 1 (converted from 200mm fan x 1 / 140mm fan x 2 / 120mm fan x 3) HDD: 120mm fan x 3 (2 for bottom HDD / 1 for Mid. HDDs) Side: 120mm fan x 2 (optional) Power Supply Mounted: Bottom External 5.25 Drive Bays: 3 Internal 3.5 Drive Bays: 13 (2 from X-dock, Middle cage for 5 HDDs, Bottom cage for 6 HDDs)