Trendnet 56K USB Data/Fax/TAM Modem. Modem speed: 56 Kbit/s, Interface: USB 2.0 A. Operating temperature range (T-T): 0 - 40 °C, Storage temperature range (T-T): -20 - 60 °C. Power supply type: DC. Dimensions (WxDxH): 100 x 35 x 23 mm, Weight: 25 g. Certification: FCC CE