This is a generic driver for the Riptide combo modem/audio card that comes installed in an HP Pavilion. I have the HP Pavilion 4450 and this driver works for me. This driver is hard to find. HP doesn't have it available for download, and I couldn't find it on any of the driver websites. I spent weeks looking for it, but I finally found it. HP sucks, I won't ever buy an HP product again.