The ARRIS Xfinity TG862GCT Discus 3.0 Residential Gateway & Router is a black router with a maximum downstream data rate of 343 Mbps. It features dual-band connectivity, four LAN ports, and is designed for use with Comcast's Xfinity internet service. The router, which is 11 inches in length and 5 inches in height, supports wireless and Ethernet connections, making it versatile for various networking needs. With its DOCSIS 3.0 standard and cable modem capabilities, this device provides reliable and high-speed internet access for residential use.