Standard EIA-RS310D Storage External: Hot-swap 3.5" x 12 (SAS 12Gbps) Maximum Capacity Up to 96 TB (Cascades to 3 enclosures with 36 HDDs, including 1 host server) Power Supply Supports Form Factor: Platinum CRPS redundant Watt: 550W Cooling Fan 8038mm x 4 12G Expander Module 1 or 2 Host/Expansion Port 3 x Mini SAS HD (SFF-8644) for each 12G expander module Management Smart fan, thermal monitor, HDD monitor, voltage monitor, alarm warning SES Supports SES-2 (SCSI Enclosure Service) Maintenance Supports management by Ethernet (Optional) and RS-232 HDD Power Management HDD sequential power on Temperature 0oC to 35oC Material Material: SGCC Thickness: 1.0 mm Rail Kit Fixed rail included. (Optional 20" tool-less and ball-bearing slide rail) Item Dimension (L"xW"xH") 30 x 25 x 10