ZOOM DOCSIS 3.0 Cable Modem and Wireless-N Router (5352-00-00) 343 Mbps DOCSIS 3.0 cable modem plus 300 Mbps Wireless-N router with 4 Gigabit Ethernet ports and dual adjustable external antennas Certified for own-your-cable-modem programs by Comcast, Cox, Time Warner Cable and more - Certified own-your-cable-modems can eliminate modem rental charges, which are typically about 85 dollars a year Built-in wireless-N router simplifies setup while saving space, the dual external antennas can be adjusted to maximize wireless speed and provide longer range The 343 Mbps maximum download speed is up to eight times faster than DOCSIS 2.0 cable modems Integrated Gigabit Ethernet switch supports 10-100-1000 Mbps client devices Router provides advanced firewall, advanced wireless security, and IPv6 and IPv4 support WDS is supported so wireless repeaters can be used in your network to further extend wireless range and WPS is supported for easy wireless setup Two year warranty and support from Zoom Telephonics in Boston, Massachusetts