I/O Expansions : Number of Total Expansion Slots 4, Expansion Slot Type SFP+; Media & Performance : Media Type Supported Optical Fiber, Ethernet Technology 10 Gigabit Ethernet, Network Technology 10GBase-X; Physical Characteristics : Height 1.1", Width 2.9", Depth 5.2"; Miscellaneous : Compatibility Aruba 3810M Switch