crepererum#Germany issues these handy plastic cards (#eAT, similar to ID cards for citizens) to #blueCard holders. The look like ID cards and are promoted like one, but you cannot use them to identify yourself. No, you need: the plastic card, the flimsy paper sheet that came with it, and your passport. WTF Germany, how complicated can you make someone's life.
Source:
https://www.berlin.de/einwanderung/aufenthalt/elektronischer-aufenthaltstitel/#Ausweis
