Each adapter is supplied twice (for a total of 6 units), so you can also easily 2 devices with the same connection load simultaneously. There are two terminals, although coming from the charger only a black cable that splits into two USB cable until the end. The PSU has two different USB ports: one with a higher charging current (for tablets) and a normal charging current (for smartphones).
What I could not see from the description here on Amazon was how this should enable Flexus called spacers on top of the stainless steel bracket 6 different positions. Subtracting the small block with the 2 rubber strips upwards and then turns it around, you can see 3 grooves. Since the grooves are milled once with and once without the distance from the two rubber strips arises - although it uses the same groove - a different distance, when setting up the Flexus instead forwards backwards (ie rotated by 180 degrees).
Oh, even the packaging is very classy and high-quality cardboard and it is a German instruction at (not self-evident).
1 star deduction there only for the 4 screws on the housing base that break extremely fast. So my tip: Very carefully unscrew and take care that the screwdriver never spins. If checked, immediately turn the screw out again and put exactly straight.
Conclusion: I have been looking for years repeatedly after such a dock and had to resort to stopgap measures so far, because I with leather sleeve need an adjustable connection for my iPad, but not for my iPhone. Now I finally have a not only technically, but also visually perfect solution (and could even continue to use the charging station I should switch from iOS to Android devices ;-)