Couple Notes (as i’ve done some kinect work in UE4)
- Need Native Full Speed USB 3.0 (Must use Intel or Renasas USB controller. ASmedia has issues and sometimes can’t give full bandwidth and not supported by microsoft team)
- Currently there are 2 plugins that people use to work with UE4. Kinect 4 Windows v2.0 Plugin - C++ - Unreal Engine Forums and http://www.opaque.media/kinect-4-unreal/#about-k4u
Not sure why you need eSATA , or where you saw that?
However, You CANNOT use a converter/adapter to go USB 3.0 to USB 2.0 (or vise versa). The reason Kinect 2 uses USB 3 is because it needs all the data bandwidth to transfor information from the kinect 2, and USB2 does not have enough throughput.