The Conexant Smartaudio 221 driver supports both the Windows Vista and the Vista 64-bit operating systems. No other operating systems will function with the Conexant Smartaudio 221 driver.
The Conexant Smartaudio 221 driver is intended for use only in notebooks and computers equipped with the Conexant High-Definition Audio chip. Do not attempt to use this driver version on other audio hardware.
The Conexant Smartaudio 221 driver repairs bugs where docking volume is excessively low, and where the LED on your notebook's mute function switches quickly between red and blue.