Linksys ADSL Modem. Modem speed: 11 Kbit/s. Networking features: ADSL2, ADSL2+. Operating temperature range (T-T): 0 - 40 °C, Operating relative humidity range: 10 - 85 %, Storage temperature range (T-T): -20 - 70 °C. Dimensions (WxDxH): 110 x 110 x 32 mm, Weight: 0.135 kg. Certification: CE, UL