The Arris Surfboard Cable Modem Model SB6190 is a DOCSIS 3.0 cable modem designed for high-speed internet connectivity. It is approved for use with Xfinity and features a single LAN port for connecting to a television set or other devices. With a sleek white design and compact dimensions of 9 inches in height and 7 inches in width, this cable modem is a reliable and efficient option for home networking needs. Its unlocked feature allows for flexibility in choosing a service provider for optimal performance.