Today only, newegg offers the Motorola SURFboard DOCSIS 3.0 eXtreme Broadband Cable Modem, model no. SB6121, for $69.99 plus 99 cents for shipping. It's the lowest total price we could find by $23. The SB6121 features four upstream and four downstream channels, support for IPv4 and IPv6, enhanced network management, and more.

Note: This modem may not be compatible with all service providers.