Your card10 comes in a bag with all its components and a [flyer/booklet/manual](/media/assembly_flyer.pdf). You can also checkout our assembly [video-tutorial](/vid/).
> :warning: **If you want to build for GNURadio 3.7**: Make sure to use the `main-3.7` branch of this repository (i.e. run `git checkout maint-3.7` before installation).
The main components of your card10 are two electronic boards, the _fundamental_ board and the _harmonic_ board.
The _fundamental_ board sits directly on the wrist band, the _harmonic_ board with the display sits on top of it.
If you are curious to learn more about the two boards, you can find a more detailed description on the [hardware overview](/en/hardware-overview/) page.
