CDJ 3000 USB Compatibility

Yes; 3.0, 3.1 or 3.2 are compatible however I'll post this disclaimer as well:

Pioneer DJ does not guarantee 100% compatibility with any USB drive. Functionality of one drive does not guarantee functionality of another identical make / model drive. Manufacturers are known to change the memory controller chip per availability or cost, and as a result, there is always a chance that a drive may not be compatible with the player host chipset. Recommendations or the results of another user may not be the same for you and your drive.