Netgear 54 Mbps Wireless-G ADSL Modem Firewall Router. Bandwidth: 2.4 GHz. DSL connection type: ADSL, DSL specification: ADSL2+. Antenna gain level (max): 2 dBi. Security algorithms supported: WPA-PSK, WPA2-PSK. Operating temperature range (T-T): 0 - 40 °C, Operating relative humidity range: 5 - 90 %