Super Chassis 823TQ-653LPB Black 650W High-efficiency Power Supply Gold Level Certified, 6x 3.5" Hot-swap SAS / SATA Drive Bays, 1x 5.25" Peripheral Drive Bay, 1x Slim DVD-ROM Drive (optional), 4x 80mm 6300 RPM Fans, 7x Low-profile, Full-length I/O Expansion Slots, Power Switch & 6 LED Indicators, Full SES2 support is available with SAS motherboards and other compatible components.