what it does is this its a wifi card for pcmcia card port its a wireless n card and software is at netgear.com and for older laptops with built in wifi card take it out of ur pc cause it 802.11 a/b/g this is n and 270mbps per sec is way faster than abg put tighter and then some works great i have one and my dads laptop is old and he will need this F&W&B