EdgeRouter ER-4 is a 4-port Gigabit router with 1 port SFPEdgeRouterâ„¢ 4 is a 4-port gigabit router. It delivers 3.4 million packets per second with line capacity up to 6 Gbps. The whole thing is closed in a compact and economical case.Universal designEdgeRouter 4 can be mounted in a...