Plug and play - Easy setup with no configuration required 5 ports Gigabit Ethernet - 5*10/100/1000 Mbps auto-negotiation RJ45 ports obtains the fastest possible connection. Sturdy metal case - sturdy metal design S A better heat dissipation Humanization design - supports wall-mounting and desktop installation Lightning protection - 6kV Lightning protection on all ports, prevent the Induction current from the Lightning struck.