Kinect 2

Hardware

Kinect 4 Windows 2 comes with a breakout box which basically converts from a custom power supply plug with 12V and 5V & a standard USB3 B-style socket to the proprietary Kinect connector. Currently, it seems like the Kinect 4 Windows 2 itself is identical to the Kinect One from the Xbox, whose internals are already extensively covered at iFixit: http://www.ifixit.com/Teardown/Xbox+One+Kinect+Teardown/19725

PCB top view with Kinect socket + debug connector

PCB bottom view

Kinect socket with pin numbers

Pinout & Kinect cable wire colors (as per https://i.cloudup.com/gsEOYAqIDS.png). Some cables use 2 shades of brown instead of red/brown for 5/12V:

1: 5V (from PSU), red (or light brown)

2: D+ (USB2), green

3: D- (USB2), white

4: GND, grey

5: 12V (from PSU), brown (or dark brown)

6: GND, black

7: GND, black

8: Unknown (probably debug signal), white/black -- goes together with pin 1 (5v) providing differential signaling; Leave it not connected

9: StdA_SSRX+ (USB3), orange

10: StdA_SSRX- (USB3), purple

11: GND

12: StdA_SSTX+ (USB3), yellow

13: StdA_SSTX- (USB3), blue

All grounds/shielding are connected internally.