Supermicro 800W 4U Tower/Rackmount Server Chassis CSE-745TQ-R800B Case Type: 4U Tower / Rackmount M/B Type: EATX (12 x 13 inch) Processor Support: Dual, Single Intel / AMD Processors Drive Bays: 8x 1" Hot-swap SAS/SATA Drive Bays; 2x 5.25" Peripheral Drive Bay; 1x 3.5" Floppy Drive Bay Expansion Slots: 7 (Full-height, Full-length) Cooling System: 3x 5000RPM Hot-Swap PWM Cooling Fans; 2x 5000RPM Hot-Swappable Rear Exhaust PWM Fans Front I/O Panel: 2x USB Ports Chassis Only. Does not include CPU, MB, HDD, memory or other parts.