Upgrade your home network with the Motorola SURFboard SB6121 DOCSIS 3.0 High-Speed Wifi Cable Modem. This sleek black device offers a maximum downstream data rate of 172 Mbps and a maximum LAN data rate of 300 Mbps, ensuring fast internet speeds for all your devices. With a single Ethernet (RJ-45) port and one LAN port, this cable modem and router combo is perfect for unlocked carriers and home networks.The Motorola SB6121 is compatible with DOCSIS 3.0 and features a compact design, making it easy to place in any room of your home. This modem device type is perfect for those in need of a reliable and high-speed internet connection. Connect your devices with ease and enjoy fast internet speeds with the Motorola SURFboard SB6121.