2. 16 x 3.5" Hot-swappable SAS Drive Bays
3. 28-Port 3Gb/s SAS Expander with Enclosure Management
4. 1 x Slim DVD-ROM Drive 1 x Slim Floppy Drive (Optional)
5. 7x Full-height, Full-length Expansion Slot
6. 3 x 8cm Hot-swappable Fan
7. 2 x 8cm Rear-exhaust Fan
8. Power Switch & 6 LED Indicators