I buy this cable modem to get rid of the $ 5 , soon to be $ 7 , rental modem from Charter . I think I be purchase a new modem , but when the box arrive I see the refurbish labeling on the box ! I install it very quickly and it perform like new . I hope it last as long as the dsl modem that I have when I use AT&T; for Internet access !!!! I have all the download\/upload speed I could ask for with this modem ! I know Amazon will back it even though it be a refurbish unit !!!