Obviously always there is confusion if you use certain brand of computer and prefer an external hardware device of another brand. I am at the same situation. Recently I bought a Logitech HD pro webcam C920 and then went on to install it into my Mac Pro 2010. After installing the webcam when I tried to run the webcam I found that the camera was not working at all as it needed an appropriate driver for the webcam to function. Now the confusion is that which driver I should download. Should I get the drivers from the Logitech site or I should get them from somewhere else. Please guys help me out and let me know what exactly should I do?