A digital rear view mirror or video rear view mirror is one that uses a camera facing the rear and displays the video on the mirror. GM uses it extensively, but needs to use FAKRA connectors. I had one in mt Sierra and have one in my C8. I believe for the most part that it uses the same windshield mount, I don't believe the camera has the same night vision capability of dashcam mirror set up s such as Wolfbox etc. I have verified that the Wolfbox OEM mirror bracket does fit on our ST's. Wolfbox seems to be the most available that I have seen so far and as a norm has a higher review rating. Including the ones not sponsored by Woflbox.