I have owned this card for several years, it's a complete pain in the ass with very good range. I recently upgraded to Windows 7 64-bit and after a lot of looking and finally live chat with linksys, this device is absolutely not compatible with windows7 64-bit. it will cause random lock up and blue screens, if you can get it to work at all. Linksys has this information hidden away on their website, despite their driver download saying its compatible with windows 7 64bit. It absolutely is not, try it and you will find your pc randomly locking up all the time.