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 $24 below our October mention of a new model, which was bundled with a router, and the lowest total price we've seen this year. (It's a current low by $7 for a refurb.) It features support for IPv4 and IPv6 and enhanced network management. A 90-day Motorola warranty applies. Deal ends today.