The Zoom 5352 Cable Modem/Router with Wireless-N supports cable modem speeds up to 343 Mbps. With IPv4 and IPv6 networking support, this is a product designed and built for use today and for years to come. The embedded router with Wireless-N support continues the high-performance with 2 X 2 MIMO for the range, wireless speeds and networking support needed for multimedia, Internet video and high-performance networking in a home or office. Dual adjustable-position external antennas help maximize the wireless performance. DOCSIS 3.0 cable performance allows bonding of up to eight channels on downloads and four channels on uploads when used with the latest cable systems. DOCSIS 2.0 and 1.1 support provides compatibility with older cable systems. Cable modem performance has been tested and approved by CableLabs, the industry's non-profit test and certification authority. The 5352 has also been tested and approved by Comcast, Cox, Time Warner Cable, and other service providers.