So in itself everything was great, except for the case that does not quite fit as the raspberry to tall through the pins. The I later with a pair of nail scissors made or trimmed slightly narrower, then fit everything without wiggling and co.
Now for the Raspberry, I use it as a NAS Server for backup of data. In itself, it runs perfectly with a transmission rate of 7-12 MB in your own network. I can not complain;)