to use the kinect with max, you need the external object "freenect". This sadly, is only working with my 7, not with Max 8 (yet?)
so you will need to get Max 7 for Kinect stuff
AAAAND Important notes:
I'm using Mac, 10.14 Mojave (so it works on Apple devices)
I have a Kinect 360, the old one, and use this adapter to connect it to my macbook, because the sensor itself has only a strange, xbox-only type of usbstuff, not a real usb connection https://www.amazon.de/gp/product/B008OAVS3Q/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1