The delivery was incredibly fast (Friday ordered dinner, Saturday lunch provided). Installation actually fine, but the function is not available in electric only problems - mechanical plugging and unplugging of SD and microSD cards is problematic: the CD-Cards you get only purely with tact and the microSD card only with tweezers or screwdriver out again, since none of these conventional ejection mechanisms (like the pen button, no idea how they call the principle) is present and the microSD disappears almost completely in the slot. This is very annoying, especially if the computer is unter'm table and not at eye level! Ichhab me brought the reader, because he can read microSD cards against my old readers, but mechanically it is a step backwards!
Conclusion: Although technically works only access but mechanically the solution is bad! Do not know if was poorly constructed here or simply the quality is poor. Consider also to complain, but then I have to re-screw on the computer and do not know if I get a better reader.
EDIT: for easy replacement of the reader by the dealer CSV the replacement device is a little better but not great, so I now have (only) three stars increased to. Apparently the design is bad and the quality assurance takes place here at customers. Too bad!