The NETGEAR Cable Modem CM400 is a high-speed modem designed for cable plans up to 340 Mbps. With DOCSIS 3.0 technology, it provides fast and reliable internet connectivity. The modem has a maximum downstream data rate of 340 Mbps and a maximum LAN data rate of 1000 Mbps, ensuring smooth and seamless internet access for all your devices. Its black color and compact design make it a stylish and easy-to-use addition to your home networking setup. The CM400 also features wired-Ethernet connectivity and one Ethernet port for connecting multiple devices.