2. 8 x 3.5" Hot-swap U320 SCSI Drive Bays
3. 1 x Slim DVD-ROM Drive (Optional) 1 x Slim Floppy Drive (Optional)
4. 3 x 80mm 6300 RPM Fan
5. 7 x Low-profile, Full-length I/O Expansion Slot
6. 1x Serial, 2x USB Front Access I/O
7. Power Switch & 6 LED Indicators