The following sound chips are no longer being sold, and ongoing support is restricted or not available. If you utilize an audio adapter depend on one of these products, you want to upgrade if you can't obtain drivers for latest and helpful operating systems.

Discontinued products contain

• Oak Technology OTI-601 series. Oak closed audio chipset industry in 1998.

• Trident 4DWave-NX series. This 3D audio chipset was utilized on some cards from minor audio adapter vendors, like Aztech, Jaton, and Hoontech.