Number of Total Expansion Slots 2, Expansion Slot Type QSFP+; Media & Performance : Media Type Supported Optical Fiber, Ethernet Technology 40 Gigabit Ethernet, Network Technology 40GBase-X; Physical Characteristics : Height 1.1", Width 2.9", Depth 5.1"; Miscellaneous : Compatibility Aruba 3810M Switch, Environmentally Friendly, Environmental Certification REACH