The Korg OASYS PCI is a DSP-based PCI-card for PC and Mac released in 1999.

It offers many synthesizer engines from sampling and substractive to FM and physical modelling.

Korg released Synth Kit software for Mac OS 9 for extensions developing.

Some of addition plugins were released to expand card capabilities: Because of fast market fail, no drivers were released for (then) modern operation systems including Windows XP and Mac OS X.

Most of users had to have dedicated computer for Korg Oasys PCI on Windows ME/98.