Networking Type:Switch Module Form Factor:Plug-in module Connectivity Technology:Wired Data Transfer Rate:1 Gbps Data Link Protocol:Ethernet Fast Ethernet Gigabit Ethernet Networking / Ports Qty:20-port 10/100/1000 PoE ; 4-port mini-GBIC Features:Duplex: half or full Width:10.3 Inch Depth:8.13 Inch Height:1.75 Inch Connections:RJ-45 Service & Support Type:Lifetime Warranty COO:Singapore