Not for XP - AT ALL!
Do not get this item for XP Pro!!!!!! I was updating some business machines to Gigabit with these cards. Once the drivers are installed... of the machines that would boot, they ran incredibly slow. Very slow startups and sluggish response. Other machines would just freeze up after a few minutes of operation. I suspected problems when, during the driver install, I got a warning that the driver was not signed or validated for XP and it asked me to either quit the installer or continue. Of course, I installed it anyway and payed the price. It took a good half day to totally get the drivers off the 5 machines that it infested. For me, this is the first instance of reverse Vista where drivers for XP are beginning to not work of even be made. Get the Intel gigabit card which requires no drivers in XP machines. This isn't a slam against Netgear at all because they make great stuff but on this one they dropped the ball for XP users.