product be refurbish . Wish I would have see the other review before purchase . the ac adapter include be a dud - rather than deal with the hassle of return it , I simply use a old adapter that I just happen to have , then it work fine . many time refurbish product be not such a bad idea - the item have supposedly be test after be send back to the manufacturer , but after this I will never buy a Linksys refurbish product . shame on Amazon.com for not clearly state such a important detail in the description .