ASUS RT-AC66U Dual-Band Wireless-AC1750 Gigabit Router - Manufacturer Refurbished 1 x Gigabit WAN port; 2 x USB2.0 support got Printer sharing or HDD sharing; 3 x Detachable antenna for 2.4GHz/5GHz with peak gain 3dBi/ 5dBi; 4 x LAN ports for 10/100/1000 BaseT 02.11AC(1300Mbps over 5G) + 802.11N(450Mbps over 2.4G); IPv6 support; VPN Server Support Network Standard: IEEE 802.11a, IEEE 802.11b, IEEE 802.11g, IEEE 802.11n, IEEE 802.11ac, IEEE 802.3u, IPv4, IPv6 Encryption: 64-bit WEP, 128-bit WEP, WPA2-PSK, WPA-PSK, WPA-Enterprise, WPA2-Enterprise Supports Ethernet and 802.3 with max. bit rate 10/100/1000 Mbps