Corsair is announcing an updated version of its K70 mechanical keyboard today that comes with more responsive OPX optical mechanical switches. It costs $149.99, $10 more than the [standard K70 released last year](https://www.theverge.com/2021/5/5/22420824/corsair-k70-rgb-tkl-review) with more traditional Cherry mechanical switches. Aside from the switch change, the new K70 is broadly identical to last year’s model, with a detacheable USB-C cable, RGB lighting, and a tenkeyless layout.

The reason you might want a gaming keyboard with optical switches comes down to debounce delay, which typically affects keyboards with traditional mechanical switches. When you press a mechanical switch, there can be a brief period when its metal contacts clatter together before eventually settling, and this means the keyboard...