my computer is Dell Latitude E6400 and i installed windows 7 64Bit version, anyway i have found it drivers for Broadcom USH 5880 Driver for Windows 7 64Bit version already u can find from here http://support.dell.com/support/downloads/download.aspx?c=us&l=en&s=gen&releaseid=R210494&SystemID=PREC_T3500&servicetag=&os=WV64&osl=en&deviceid=21539&devlib=0&typecnt=0&vercnt=2&catid=-1&impid=-1&formatcnt=2&libid=60&typeid=-1&dateid=-1&formatid=-1&fileid=296123&cs=