Form Factor 4U rackmount chassis - supports for maximum motherboard sizes: 12" x 13" E-ATX/ATX/MicroATX Processor Support Dual and Single Intel and AMD processors Available Color Black Expansion Slots 7 full-height and full-length expansion slot(s) Drive Bays 5 x 3.5" hot-swap SAS/SATA Backplane 4U 5-Port Backplane Supports 5x3.5" SAS3/SATA3 HDD/SSD for X11 Platform,HF,RoHS Peripheral Drives 3 x standard 5.25" drive bay Optional 1 x slim DVD-ROM drive bay Front Panel Buttons Power On/Off button System Reset Button LEDs 2 Network Activity LEDs Fan Fail/System Over Heat LED HDD activity LED Power Status LED Ports 2x USB 3.0 Port(s) Systems Cooling Fans 1 x 9cm hot-swap cooling fan(s) Front, 5K RPM 2 x 8cm hot-swap redundant PWM cooling fan(s) Rear, 9.4K RPM System Monitoring Chassis intrusion switch Operating Environment (System) Operating Temperature Range 5oC - 35oC (41oF - 95oF) Non-Operating Temperature Range -40oC - 70oC (-40oF - 158oF) Operating Relative Humidity Range 8% - 90% (non-condensing) Non-Operating Relative Humidity Range 5% - 95% (non-condensing) Power Supply PS2/ATX 865W Multi-Output Power Supply with redundant cooling fan and SMBus Power Efficiency 88% Total Output Power and Input 865W with Input 100 - 240Vac AC Input Frequency 50-60Hz Dimensions (L x W x H) 185 x 150 x 86 mm Output Type 24pin ATX -12V Max: 1A / Min: 0A +12V Max: 70A / Min: 1A (100Vac - 240Vac) +5V Max: 30A / Min: 0.3A +3.3V Max: 30A / Min: 0.3A +5Vsb Max: 6.5A / Min: 0A +12Vsb Max: NAA Certification Certified Regulatory (Power Supply) Power Supply Safety / EMC BSMI CCC CE/EMC FCC class B TUV/CB UL/CUL Item Dimension (L"xW"xH") 29 x 26 x 14 Weight 76.00 LB Warranty Information 1 year