It doesn't work. The connector board on the ring only short circuit the connectors from the camera and doesn't provide a bridge connector to the side positioned contact pins on a Nikon lens. This doesn't allow any information to be passed from the lens to the camera. I have an EOS Ra, maybe the connectors are different on older EOS models.
The description actually states that this chip will only work for one specific lens a 50mm F1.4. I missed that so maybe my earlier review was not justified. If you intend to use any other lens it will probably not work.
Tight fit on the lens side (not very easy to remove with the little lever), quite OK on the camera side (registers as a 50/1.4 and allows focus confirm as expected). Infinity focus precisely maintained.