Draytek Vigor 3900. Networking standards: IEEE 802.1Q, IEEE 802.3, IEEE 802.3u. Connectivity technology: Wired & Wireless, WAN connection: RJ-45. Management protocols: HTTP / HTTPS, Supported network protocols: DHCP Client/Server, DHCP Options, Dynamic DNS Service Updating, NTP, DNS Cache/Proxy. Security algorithms supported: 128-bit AES, 3DES, DES, VPN support: PPTP, L2TP, IPSec, L2TP over IPSec. AC input voltage: 220-240 V, AC input frequency: 50/60 Hz