1 x WAN port IPv6 support VPN Server Support 50% more coverage 2 x USB2.0 support got Printer sharing or HDD sharing 4 x LAN ports for 10/100/1000 BaseT Supports Ethernet and 802.3 with max. bit rate 10/100/1000 Mbps 3 x Detachable antenna for 2.4GHz/5GHz with peak gain 3dBi/ 5dBi 802.11n: up to 450Mbps ; 802.11a/g: up to 54Mbps; 802.11b: up to 11Mbps