1. 500W High-efficiency Power Supply 2. 4x 3.5" Hot-swap SATA Drive Bays 3. 2x 5.25" Drive Bays and 1x 3.5" Bay 1x Floppy Drive or card reader (opt.) 4. 1x 92mm Front Thermal Fan 5. 7x Full-height, Full-length Expansion Slots 6. 2x USB Front Access I/O 7. Power Switch & 4 LED Indicators 8. Locking Side Panel