The Motorola B12 DOCSIS 3.1 Cable Modem is a high-speed modem designed for use with Comcast Xfinity, Cox Spectrum, and other DOCSIS 3.1 cable internet providers. With a maximum downstream data rate of 2.5 Gbps, this modem offers fast and reliable connectivity for home networking and connectivity needs. The Motorola B12 is a cable modem with a built-in router, making it a versatile and efficient choice for both modem and router functions in a single device. It is specifically designed for use with major cable internet providers and is a reliable option for achieving high-speed internet access.