This black Motorola Arris SURFboard modem, model SB6121, is perfect for those looking for fast and reliable internet connectivity. With a maximum downstream data rate of 172 Mbps and a maximum LAN data rate of 172 MBPS, this USB modem is ideal for gaming and other high-bandwidth activities. It features Ethernet (RJ-45) ports for easy connectivity and is compatible with DOCSIS 3.0 standard.

This cable modem and router unit is compact, measuring 5 inches in length, 6 inches in height, and 1.5 inches in width. It is manufactured in China and comes with a two-year manufacturer warranty. This modem is an excellent choice for those in need of a wired-Ethernet (RJ-45) connection and an unknown number of LAN ports.