Looking for a reliable and high-speed modem for your home or office internet connection? Check out the Motorola Arris Surfboard Extreme Modem, model SB6121, which supports DOCSIS 3.0 standard and a maximum LAN data rate of 1000 Mbps. This black unit is designed for wired-Ethernet (RJ-45) connectivity and comes with one LAN port. It is compatible with Comcast as a carrier and is ideal for home networking and connectivity needs. The Arris Surfboard modem boasts a brand reputation of Motorola, and its features can be found on the label. This unit type is a cable modem that connects to your device and ensures a seamless internet browsing experience. With its DOCSIS 3.0 support, you can enjoy high-speed internet without any lag. Get your hands on the Motorola Arris Surfboard Extreme Modem now and experience the power of high-speed internet.