For DJs still rocking the Pioneer DDJ-T1 Go to product viewer dialog for this item.
Search Pioneer’s site for: DDJ-T1 driver (v1.100 or later). Direct link (Pioneer DJ legacy section): https://www.pioneerdj.com/en-us/support/legacy/ Pioneer Ddj T1 Driver Mac Download
Here’s what you need to know to (potentially) get it working, plus a critical warning. For DJs still rocking the Pioneer DDJ-T1 Go