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Why do some USB connectors have those 2 square holes?

来源: Engadget - Technology News & Expert Reviews · 发布于

Why do some USB connectors have those 2 square holes?
来源: Engadget - Technology News & Expert Reviews

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.

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