It works. I've confirmed it myself. Just make sure "Play Stereo Mix using Digital Output" is checked and your "Speakers"/analog output is set as the default audio device in Windows. The former's PCI-Express, the latter's old-fashioned PCI. Naturally, I think you'll want the PCI-Express Titanium model, seeing as legacy PCI slots are getting phased out on modern motherboards.
8/11/14 at 1:06am