Key Features 1. 650W High-efficiency Power Supply 80 PLUS, Gold Level Certified 2. 6x 3.5" Hot-swap SAS / SATA Drive Bays 3. 1x 5.25" Peripheral Drive Bay 4. 1x Slim DVD-ROM Drive (optional) 5. 4x 80mm 6300 RPM Fans 6. 7x Low-profile, Full-length I/O Expansion Slots 7. Power Switch & 6 LED Indicators 8. Full SES2 support is available with SAS motherboards and other compatible components.