SC813MTQ-520C   SC813MTQ-520C  
    1. 520W High-efficiency Power Supply

2. 4x 3.5" Hot-swap SAS / SATA Drive Bays

3. 1x Slim CDROM Drive (Optional)

5. 4x 4cm 12,500 RPM Fan

6. 1x Full-height, Half-length I/O Expansion Slot

7. Power Switch / Reset & 5 LED Indicators