1. Redundant 500W Power Supply 2. 6x 3.5" Hot-swap SAS / SATA Drive Bays 3. 1x 5.25" Peripheral Drive Bay 4. 1x Slim CD-ROM Drive 1x 3.5" Floppy Drive (Optional) 5. 4x 80mm 6300 RPM Fans 6. 7x Low-profile, Full-length I/O Expansion Slots 7. Power Switch & 6 LED Indicators Please Note: Full SES2 Support is only available on SAS motherboards