Product Description Key Features 1. 4x 3.5" internal SAS/SATA HDD Bays 90° rotatable HDD cage design 4x 2.5" internal SAS/SATA HDD (opt.) 2. Peripheral Drive Bays: 2x 5.25" and 1x 3.5" 3. 1x 12cm Rear Exhaust Fan 1x 12cm Front Cooling Fan (opt.) 4. 7x Full-height, Full-length PCI Expansion Slots 5. Front I/O ports: 2x Audio (HD/AC97), 2x USB 3.0, 2x USB 2.0 ports 6. High Efficiency Power Supply 7. Cost Effective Desktop, Embedded, Workstation Chassis