A450LA A450LAV A450LD BU401LA BU401LG Conexant SmartAudio HD X200CASee More Manufacturers ASUS Conexant Supported Operating Systems Windows 8.1 (64 bit) File Name Audio_Conexant_Win8_64_VER865951.zip (111.5 MB)Versions 8.65.9.51 (28-Nov-2013)Additional...