SC742S-420  
    1. Redundant Cooling 420W Power Supply
2. 7x 1" SCA Ultra320/160 SCSI
Hot-swappable Drive Bays
3. 3x 5.25" Peripheral Drive Bays
4. 1x 5.25" Drive Bay For 3.5"
1.44MB Floppy Drive
5. 7x Full-height, Full-length expansion slot
6. 2x 90mm Hot-swappable Fan
7. 1x 120mm Rear-exhaust Fan
8. 2x Front USB Ports (optional)
9. Locking Bezel
10. Power Switch & 6 LED Indicators