ZyXEL Prestige 660HW-D7. Bandwidth: 2.4 GHz. DSL connection type: ADSL. Networking standards: IEEE 802.1D, IEEE 802.11b, IEEE 802.11g, IEEE 802.1x. Routing protocols: RIP-1, RIP-2, IGMPv2, IGMP, Management protocols: SNMP, Telnet, HTTP, Supported network protocols: TCP/IP, PPTP, UDP/IP, L2TP, ICMP/IP, IPSec, PPPoE, PPPoA, AAL5. Antenna gain level (max): 2 dBi