As one of its daily deals, Woot offers the factory-refurbished Motorola SURFboard DOCSIS 3.0 Broadband Cable Modem, model no. SB6121, for $39.99 plus $5 for shipping. That's tied with our mention from a month ago, and the lowest total price we could find today by $4. It features support for IPv4 and IPv6 and enhanced network management. A 90-day Motorola warranty applies. Deal ends today.