General Number of Controller: 2 PCIe Switch: Broadcom PEX 9765 Host/Expansion Interface: Optional Drives Supported Drive Interface: SFF-8639 Form Factor: U.2 Administration / Management Admin/Firmware Upgrade: Serial port interface IEM port LED Indicators, Audible Alarm: Yes Hot swap and Redundancy Drive Bays: 24 Cooling: 4 x 60 x 56mm hot swap fans Power Supply: 1300W 1+1 hot swap redundant 80+ Platinum Power Entry: Dual AC Inlet Controller: Dual Electrical and Environment Universal A/C Input: 100 to 240V AC Full Range Operating Environment: Temperature : 0oC to 35oC Relative humidity : 20% to 80% Non-operating Environment: Temperature : -20oC to 60oC Relative humidity : 10% to 90% Physical Specification Mounting: Standard: 28" tool-less rail Item Dimension (L"xW"xH") 24 x 37 x 13 Weight 84.00 LB Warranty Information 3 Year