the finger capture is most importance in my work flow.
but i dont know which one better
i want buy Basic license, it can use 6*C922 or 2*Kinect 2.0

Our software doesn't capture fingers. There are capabilities in Mocap Studio for keyframing fingers.
6 color cameras allow to capture wider range of motions, but this setup is more difficult to exploit compared with dual Kinects. Find pros and cons of different setups in our docs or search around this forum.