I decide to buy a cable modem when Comcast raise the rental price from $ 3 to $ 5\/month . hooked this up in no time , call Comcast with the MAC address , and be up and run after reset the modem and the router . it work great . the modem come in a box with a Linksys logo that indicate it be a `` certified refurbish product '' , and carry a 90-day factory warranty . I look forward to save $ 60\/year . as a bonus , this support the DOCSIS 2.0 standard , so I should be see even better throughput than the 7yo DOCSIS 1.1 modem I be rent .