1. 500W High Efficiency Power Supply 2. 5x 3.5" Internal HDD Bays 3. 3x 5.25" Peripheral Drive Bays 4. 1x Slim DVD-ROM Drive Bay 5. 7x Full-height, Full-length Tool-less Expansion Slots 6. Dual channel Air Duct design 7. 2x Front USB 2.0 Ports & 1x Com port 8. Front System Fan 9. Power Switch, Reset Switch & 6x LED Indicators