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What exactly is an optical switch? The current optical switches, in fact, can also be called mechanical optical switches. The optical switches are triggered by the optical sensor to the induction of the light signal to register a key.

The Keyboards of TechCrunch's editorial staff - by Matt Burns @TechCruch Mar 1, 2021Credit: @quantomatic "The Keychron K3 Ultra-slim is a mechanical keyboard with all of the benefits of a small footprint and low-profile design, while retaining the satisfying typing...