Motorola Surfboard SBG900 Modem Cable Modem Gateway 802.11B/G 10/100 Mbps Ethernet port to connect with router or computer, and WiFi 802.11B/G 2.4GHz up to 54Mbps DOCSIS 2.0 Certified, capable of up to 38Mbps down and 30Mbps upstream Internet speeds Front-panel LEDs indicate status and simplify troubleshooting Requires Cable Internet Service. Compatible with major U.S. Cable Providers. Contact your ISP to verify compatibility. Specially designed architecture-allows for future upgrades