

When typing slowly, you’re probably typing one key after another, but if you’re writing more quickly or playing a game, it’s very likely that you’ll be holding down, pressing and releasing multiple keys simultaneously. Rollover is simply how well your keyboard can correctly register multiple keys being pressed simultaneously. We’ll also give some hints on what you should look for when you’re buying a new keyboard.

In this article, we’ll explain what we mean by rollover, how keyboard rollover is classified and show you how to test rollover for yourself.

N-key rollover is commonly cited as an advantage of choosing a mechanical keyboard over a rubber dome alternative, but the concept often isn’t well explained.
