Zoom 5241 DOCSIS 2.0/1.1/1.0 Cable Modem with USB and Ethernet interfaces. Modem speed: 42000 Kbit/s. Upstream data rate: 10.2 Mbit/s, Downstream data rate: 42 Mbit/s. Operating temperature range (T-T): 0 - 40 °C. Dimensions (WxDxH): 152 x 112 x 25 mm, Weight: 0.22 kg. Certification: X.509 V3