Woot offers the factory-refurbished Motorola SURFboard DOCSIS 3.0 Cable Modem, model no. SB6141, for $49.99 plus $5 for shipping. That's $30 under the lowest total price we could find for a new one, although we saw a refurb for a buck less three weeks ago. It features support for IPv4 and IPv6 and enhanced network management. It may not be compatible with all service providers. A 90-day Motorola warranty applies. Deal ends February 23.