SD cards are cool: cheap, reliable, a lot of space and you can remove them from the drone and read on a PC. But sometimes, it's really hard to take them out. Either SD slot is in a strange place, or FC is oriented in a strange way or an FC designer has put an SD slot in a most stupid place of them all...

You can use Betaflight 3.4 as an SD card reader (MSC standard compatible) and either use it do get your blackbox logs via USB cable or use it, if you really want to, as a pendrive. With drag and drop and all that stuff. All you have to do is to go to CLI and type "msc" and hit enter. That's all! It's not perfect, but works!