https://www.virtualdj.com/forums/263081/Wishes_and_new_features/Traktor_Kontrol_S4_MK3.html
VirtualDJ - Traktor Kontrol S4 MK3
With over 100,000,000 downloads, VirtualDJ packs the most advanced DJ technology. Both perfect to start DJing, and perfect for advanced pro DJs.
traktor kontrol s4virtualdjmk3
https://www.virtualdj.com/plugins/index.html?addonid=80980
VirtualDJ - Download extension Traktor Kontrol S4 MK3
With over 100,000,000 downloads, VirtualDJ packs the most advanced DJ technology. Both perfect to start DJing, and perfect for advanced pro DJs.
traktor kontrol s4download extensionvirtualdjmk3
https://www.musicradar.com/news/dj/ni-traktor-kontrol-s4-and-s2-updated-now-ipad-compatible-584177
NI Traktor Kontrol S4 and S2 updated, now iPad-compatible | MusicRadar
Sep 12, 2013 - Both controllers feature RGB buttons and high-res jog wheels
traktor kontrol s4ni