https://www.gamespot.com/articles/there-could-be-switch-shortages-this-holiday-and-h/1100-6453236/

Nintendo cannot guarantee that there will be enough Switch units in the marketplace this holiday season to meet demand, executive Reggie Fils-Aime said during a recent speaking event. Now, Fils-Aime has provided some further context about what he called "choke points" in the manufacturing chain.

The executive told The Financial Times said the supply chain for the Switch is "complex," adding that there are multiple components that could be "choke points." The FT quotes analysts in Japan calling out one company in particular, Alps Electric, which makes components in the Joy-Con controllers. However, Fils-Aime wouldn't give any details on particular sections of the Switch's supply chain.