This circuit board is a purple learn button for the Chamberlain Liftmaster 41AS050R2 model. It is compatible with Craftsman, LiftMaster, and Chamberlain brands, and is designed for use with garage doors and openers. The board is sold as a standalone item and is ideal for those looking to replace or upgrade their existing circuit board.

The board is easy to install and comes with all the necessary components. It is a non-domestic product and is made in China. This circuit board is a great choice for anyone looking to improve their garage door opener experience.