The Pioneer DJ CDJ-2000NXS2 will be a supported HID device in Serato DJ before the end of this year. This follows our announcement that DJM-900NXS2 support is also coming. You can read more about this here.
For more information on using supported CDJs in Serato DJ with HID mode, check out this tutorial video.
If you have any questions, feel free to drop us a line in the comments below :)