The original had a 32 kHz sample rate and the new plug-in supports 44.1 through 96 kHz and 550 presets. The LFO and Arpeggiator can be synchronized to MIDI clock.

The original was only 6-voice polyphonic, but is now up to 32 voices. Replicates the original monophonic synth but now has 32 voice polyphony. It is compatible with both the PC and Mac and the software was originally supplied on CD-ROM but can now be downloaded via Korg's online store. The Legacy collection is compatible with ASIO RTAS VST and stand alone so it can be used without a DAW. They use Korg's proprietary CMT (Component Modeling Technology) to emulate the original hardware. On Thanksgiving 2022, they added the microKORG, ELECTRIBE R and KAOSS PAD. With the addition of the Korg Triton Extreme, MiniKORG 700s and Korg Prophecy, it was renamed the Korg Collection 3. All of these synths were revamped in the spring of 2020 and renamed, collectively, the Korg Collection 2. On December 21, 2017, the ARP Odyssey was made into a VST and added to the collection, and the Korg Triton was added on for Christmas 2019.

In 2006, they added the Korg Mono/Poly, Korg M1, and Korg MDE-X Multi FX processor. The original 2004 release consists of the Korg MS-20, Korg Polysix and Korg Wavestation, and Legac圜ell, a VST which layers combinations of any of the past 3 synths mentioned. The Korg Collection 4 (Formerly Known as the Korg Legacy Collection and then simply the Korg Collection with Numbers denoting major updates) is the one of the largest collections of VST instruments from Korg and was released in 2004 with updates and more Synths added over time.

Korg wavestation 2