Dual linear VCA. Go here for a full description of the module.
SMD PROJECT!!! Some prior soldering & assembly knowledge is important for successfully completing this build. Not recommended for absolute beginners. If you have some soldering experience, but are new to surface mount soldering, study the video links in the build guide, and make sure you have the proper tools.
A kit includes all parts related to making the module + a ribbon cable + related documentation. You just need tools and some patience.
If you buy just a pcb/panel you’ll need to source your own parts using the detailed bill of materials. This will direct you to a Mouser shopping cart with most of the parts. And the rest of the parts are found at Tayda, Modular Addict, Thonk, etc…