After I had tried only a shell of Hama which was too small for the tablet, however, I decided for the cheaper original cover of Samsung. The tablet slides properly in the brackets and clicks audibly also fixed (there is no padding on the supports such as in Hama). Thus, the tablet sits stably in the envelope. The charging and headphone access, as well as camera and microphone are cut to fit and the SmartCase function runs properly (with set safety locks on the Disply on it, only one). The lid is apparently glued only on the inside of the back, therefore will show how long he persevere in use. The set-up options of the envelope also work and it stands relatively stable, depending on the surface.
Deductions gets the envelope because the lid does not hide the entire tablet among themselves, but still a good margin leaves on the sides and at the base. I also would have liked a little more self-stability of the shell, no more thin plastic. Also the price / performance ratio is I think rather weak when you look at its competitors. Who is, however, not sure about other manufacturers because of the perfect fit, can here access reassured.
Ultimately, however, is the practice to show whether and how long it serves its purpose.