Key Features 1. 645W Low Noise Power Supply 2. 4x 3.5" SAS / SATA hot-swap drive bays 3. 1x 9cm PWM Cooling fan 4. 1x 12cm PWM Exhaust fan 5. 7x I/O expansion slots 6. 2x USB ports (2.0 ready) 7. 1x floppy drive 8. Power switch & 4 LED indicators 9. 2x 5.25" drive bays 10. Chassis Intrusion 11. Locking Bezel 12. Air shroud Mid-Tower & Workstation chassis support for max. motherboard size - 12" x 13" E-ATX Physical Features Height * 16.8" (427 mm) Width * 7" (178 mm) Depth * 20.9" (531 mm) Weight * 40 lbs (18.2 kg) Available Colors * Beige, Black Expansion Slots Supports 7x I/O expansion slots Drive Bays Hot-swap * 4x 3.5" SAS / SATA hot-swap drive bays Peripheral Bay * 2x 5.25" peripheral drive bay * 1x 3.5" bay for floppy drive SATA Backplane 4 x 3.5" SATA Backplane Peripheral Drives Floppy * Teac Floppy Drive 3.5" 1.44MB Front Panel Buttons * Power On/Off button * System Reset button LEDs * Power LED * Hard drive activity LED * Network activity LED * System Overheat LED Ports * 2x Front side USB ports (USB 2.0 ready) Power Supply 645W Low-Noise AC power supply with PFC [ 24-pin, (4-pin, 8-pin) = 12V ]