Key Features Enclosure Color Beige Chassis Type 3U Rack Motherboard Supported up to Form Factor EATX Regular 5.25" Bays 2 Motherboard I/O Expansion Slots Up to 6 Cooling System 4xFan Front Ports N/A Weight 47 lbs Power Supply RD760W Built-in SCA Bays 8x1" Hot-Swap SCA Drive Bays Dimensions WxDxH 17x26x5 inch Regular 3.5" Bays Optional LEDs Power/HD/Network/System Overheat/Power Fail Regular External 3.5" Bays 0 Detail Specifications Form Factor: 3U chassis support for max. motherboard size - 12" x 13" E-ATX Processor Support: Dual Xeon® Processors, or Single Pentium® 4 Processor Dimensions: 17.7" (450mm) x 25.5" (647mm) x 5.2" (132mm) (WXDXH) Gross Weight: 70 lbs (31.5kg) Colors: Beige Expansion Slots: 6x PCI expansion slots Drive Bays - Hot-swap: 8x 1" SCA Ultra320/160 Hot-swap Drives - Peripheral Bay(s): 2x 5.25" Peripheral Drive Bay, 1x Floppy Drive Bay, 1x Slim CDROM Drive Bay SCSI Backplane: Single Channel SCSI Backplane with SAF-TE Peripheral Drives: CD-ROM TEAC Slim 24x CDROM Drive (optional), Floppy Panasonic 3.5" 1.44MB Floppy Drive (beige) Front Panel - Buttons: Power On/Off button , System Reset button , NMI Switch - LEDs: Power LED , Hard drive activity LED , 2x Network activity LEDs , System Overheat LED , Power fail LED System Cooling Fans: 4x 9cm 4,300 RPM Hot-swappable Fans System Monitoring: Chassis intrusion switch Operating Temperature Range: 10 - 35°C (50° to 95° F) Non-Operating Temperature Range: -40 - +70°C (-40° to 158° F) Humidity Range: 8 - 90% non-condensing Non-Operating Humidity Range: 5 - 95% non-condensing Power Supply: 3U 760W Triple-Redundant AC power supply with PFC [ 24-pin, (8-pin, 4-pin)=12V ]