\* warning : LINKSYS will send you a BROKEN PRODUCT \* this ITEM will not work \* absolute garbage . I purchase mine and receive the modem , receipt , cd , power cable , ethernet cable and a usb cable . no instruction . none on the CD . CD do nothing . even view the `` manual '' on the CD do not give you any information as to how to install this . the program on the CD , do nothing - no choice to install , no nothing . useless . now , I have use many cable modem in the past , and I know it be just plug and play . that do not work . it appear to I that after plug everything in , the cable modem go through a self-test , then die . the only light that would stay light be the power light . the other would blink as they be test , but then turn off . useless . I finally use the control panel to `` install new hardware '' and search the CD for driver . it install fine . but it do not work . the modem itself be garbage . now what ? send it back to Linksys ? pay more in ship this item back and forth than I pay for the item itself ? useless . this be a scam . Linksys be garbage . they be try to pass of this piece of crap that be make with known defective piece . \* do NOT BUY THIS \* spend the extra money and get a REAL CABLE MODEM FROM ANOTHER MANUFACTURER \* \* UPDATE : so - I have since have this modem `` install '' , or attempt to have it install . the cable guy who come to my house run test on this modem , and he could not get it to work . he call it `` garbage '' and we immediately throw it out . so , as I say originally , it be a broken item . I be happy to finally throw this out . I have since buy a work modem from Motorolla - and it be perfect . please avoid this piece of junk . \*