Wondering what your USB Type-C receptacle means? You are not alone. Many manufacturers of USB Type-C enabled products, including PCs, are confused too. Often their device specifications aren't clear and many devices aren't marked. The short read - USB Type-C Cable and Connector Language Usage Guidelines from USB-IF offers some clues here. Thee DocKtor was able to find the following graphic that proposes a way to mark USB Type-C receptacles. Feel free to ask any USB Type-C question.