2. 8 x 3.5" SAS / SATA Hot-swappable Drive Bays
3. 2 x 5.25" Peripheral Drive Bays
4. 1 x Optional Slim CDROM Drive 1 x Floppy Drive
5. 6x Full-height, Full-length expansion slot
6. 4 x 9cm Hot-swappable Fan
7. 2 x 8cm Rear-exhaust Fan
8. Power Switch & 6 LED Indicators