traktor kontrol s4 mk1
It would be good if you mentioned which hardware, software and operating system you mean.
Old s4 mk1 will still work with modern Traktor.
But sadly it will not run on modern Mac OS as far as I know. Windows 10/11 should work though.
Windows 11 Compatibility News (Traktor Kontrol S4 MK1 is not mentioned ! (But knowing windows then who knows , but I wouldn't bet on it !)
Quote : Compatibility of Native Instruments Products on macOS : macOS 11 (Big Sur) / 12 (Monterey)
From macOS 10.15 and higher, the operability of some NI legacy hardware is terminated. This includes MASCHINE MK1, MASCHINE MIKRO MK1, AUDIO 2 / 4 / 8 DJ, TRAKTOR AUDIO 2 MK1, and TRAKTOR S2 / S4 / X1 MK1.
The workaround for macOS 10.12 - 10.14 (as described in this article) does not work on macOS 10.15 or higher. If you still want to use these legacy devices, you can only do so on a compatible OS.
Quote Kaiwan_NI : it all depends on your operating system. If you still want to use the legacy device, you can only do so on a compatible OS. Pls find more info here:
Compatibility of Native Instruments Products on Windows
Compatibility of Native Instruments Products on macOS
Traktor Kontrol S4 MK1 is EOL : End of Service for Discontinued NI Hardware
Is my Traktor S4 (MK1) useless now?
Mac : Traktor Pro 3 with Kontrol S4 MK1