The Arris Surfboard Cable Modem & Wi-Fi Router N300-300 is a dual-band device that combines a cable modem and Wi-Fi router in one unit. It offers wireless and wired connectivity options, including a single Ethernet port for wired connections. This model, also known as SBG6580, is designed for home networking and connectivity needs, providing reliable internet access for various devices. With its dual-band feature, users can enjoy faster speeds and better performance for streaming, gaming, and other online activities.See photos.