casetronicCheck the layout with the size of the keys, they are listed in the images, compare them to one of your keyboard specifically. I know Corsair uses a different non standard bottom row, IIRC the spacebar was to be 6.5u, (when I had a K70 many years ago) while the standard for pretty much every other brand is 6.25u, so check carefully. Corsair is dumb for that one.