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CNCB News
International News Portal 15 November 2026 Headlines from established publishers
Technology

Why do some USB connectors have those 2 square holes?

Some USB connectors, including USB-A, feature two small holes that have an important purpose. Other USB connectors lack these holes for a reason, too.

Some USB connectors, including USB-A, feature two small holes that have an important purpose. Other USB connectors lack these holes for a reason, too.

This story was first published by Engadget. Read the original report