1. 465W High-efficiency Low Noise Power Supply 2. 4x 3.5" Hot-swap SAS/SATA Drive Bays 3. 2x 5.25" Drive Bays 1x Floppy Drive (Optional) 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 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 39 lbs (17.7 kg) Available Colors Black Expansion Slots 7x Full-height, Full-length 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 SAS / SATA Backplane 4 x 3.5" SAS / SATA Backplane with SES2 Peripheral Drives Floppy Teac Floppy Drive 3.5" 1.44MB (Optional) 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) System Cooling Fans 1x 92mm Front Thermal Fan Operating Environment (System) Operating Temperature Range 10° - 35°C (50° - 95°F) Non-Operating Temperature Range -40° - 70°C (-40° - 158°F) Humidity Range 8 - 90% non-condensing Non-Operating Humidity Range 5 - 95% non-condensing Power Supply 465W AC power supply w/ PFC AC Voltage 100 - 240V, 60-50Hz, 6-3 Amp +5V 20 Amp +5V standby 3 Amp +12V 35 Amp -12V 0.5 Amp +3.3V 15 Amp