I'd get the adapter without focus confirm chip. A good chip costs $25.00, so what you get may not be very good. (understatement)
There was a post recently where someone had a AF chip hose his camera, it would not AF after using the adapter and chip. Thats probably not common, but at least get a good ship, not a Chinese one. Companies that make the better adapters long ago gave up on the Chinese chips due to failures.