The SC813M 1U Chassis is a density-optimized mid-level server chassis, ideal for storage and datacenters. With a depth of only 19.85", its compact design houses ATX motherboards of up to 12" x 10" and supports one Full-height, Half-length PCI addon card. 1. 410W DC Power Supply 2. 4x 3.5" Hot-swap SAS / SATA Drive Bays 3. 1x Slim CDROM Drive (Optional) 4. 1x Serial, 2 x USB Front Access I/O 5. 4x 4cm 12,500 RPM Fan 6. 1x Full-height, Half-length I/O Expansion Slot 7. Power Switch, Power Reset & 5 LED Indicators