This case interferes with the functioning of the Onyx Boox Nova Pro, so I had to return it. It has very large magnets in the back center of the case, a magnet that holds the keyboard in place, and a magnet in the flap that covers over the case. The magnets were interfering with the device. For instance, the magnet area in the back created a dead spot on the tablet where it would not recognize the stylus. Aside from the magnet issues, it was a nice-looking sturdy case, and held the tablet in place. It might work fine for some other types of devices.