With Power Supply: No Power Supply Mounted: Bottom With Side Panel Window: No External 5.25" Drive Bays: 2 (with one 5.25 > 3.5 inch converter included) External 3.5" Drive Bays: 1 (Convert from 5.25" bay) Internal 3.5" Drive Bays: 6 (Compatible with SSD) Front Ports: 1 x USB 3.0, 2 x USB 2.0 and Audio I/O ports Side Air duct: Yes