This is the brand new revolution in the PSVITA scene. This thing allow you to read your microSD inside the game reader. This new version (5.0) has been developed by Chinese manufacturer. Actually it looks like a handsome and a well finished product. Compared to the older version, there is not socket, microSD fits directly in the adapter.
It now works on every firmware! 3.60, 3.65 and the latest one 3.68.
This is the 3rd version of the cartridge adapter. Now you can close properly the game card reader on the PSVITA Slim model.