Lancom Systems 1821n Wireless. WLAN data transfer rates supported: 54 Mbit/s. DSL connection type: ADSL, DSL specification: ADSL2+, ADSL2, ITU G.992.1, ITU G.992.3, ITU G.992.5. Networking standards: 802.11b/g, IEEE 802.11n, Supported WAN type: ADSL, Ethernet, ISDN. Routing protocols: DHCP, DNS, HTTP, Management protocols: SSH, SNMP, HTTPS/HTTP. Antenna connector type: RP-SMA, Antenna gain level (max): 3 dBi