Cisco offers the factory-refurbished Linksys DOCSIS 3.0 Cable Modem for Comcast
, model no. DPC3008, for $49.99
with free shipping
. That's $37 under the lowest total price we could find for a new, factory-sealed unit, although we saw this refurb for $12 less in August. This DOCSIS 3.0 modem features support for download speeds up to 340Mbps and upload speeds up to 120Mbps. A 90-day Linksys warranty applies.