... 64 MB FlashForm FactorRack-mountableData Link ProtocolEthernet, Fast Ethernet, Gigabit EthernetNetwork / Transport ProtocolIPSecEncryption AlgorithmDES, Triple DES, AESExpansion Slots ... 50/60 Hz )Power Provided190 Watt Device Type Switch Form Factor Rack-mountable - 1U Dimensions (WxDxH) 44.5 cm x ... 1 Gbps Data Link Protocol Ethernet, Fast Ethernet, Gigabit Ethernet Empty Slots4 x shared SFP (mini-GBIC) ...