Oh, in a camera, you can insert the card too, but it was also made - that does not interest myself but the bean)
Therefore, this report is also directed at Nerds, who enjoy Linux on the smallest HW!
On the Internet you can read everything on the map and how to do things like telnet server (so you can log in directly to the card) can install or own websites. This makes the device for me the smallest WiFi-based Web server or the smallest NAS (or whatever you can do so thanks to Linux) that I've seen. This is a great "Bot" alternative to a relative "huge" and expensive Raspberry Pi, which not even WLAN "on-board" has (for it then just HDMI-out).
My angedachtes field of application is in the car. I want to insert the card into the car radio, and run a small script. And the car is parked in the garage and is connected to the home Wi-Fi, it will download from my home NAS already prepared in the house itself MP3s from a directory and install it on the map. Will take a little until I have the setup - sign up again if it worked (which is then but not on the map, but on Linux scripting knowledge) ...