1-2 of 2 Answers
That was originally designed for an attachment that never made it to market.
Sorry, there was a problem. Please try again later.It serves no use. It was for an accessory that was never released. Had to do some research on it. Here is an article on it. https://www.keychatter.com/2018/09/07/whats-with-the-hole-in-the-logitech-g512/
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