While the whole build is impressive, the most clever part involves a 3 1/2″ floppy disk that hides an SD card and works like a regular USB flash drive when inserted into the floppy drive.

Sick of constantly plugging and unplugging the microSD card between the SBC and an SD card reader, [Saulius] started looking for a more automated solution – and it wasn’t long before he found ...

If you have an older device that uses a standard (larger) SD slot, there's no need to fret! Each of these Sonic the Hedgehog PRO Plus microSDXC cards comes with an SD to microSD adapter.