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Keyboard Ghosting & Rollover Test

Keyboard Ghosting & Rollover Test v1.0
Size: 950 KB


Keyboard Ghosting & Rollover Test is a tool to test your keyboard keys for Ghosting and X-Key-Rollover, which might be very useful for gamers, but also others.

What is Ghosting?

Keyboard Ghosting is the problem that some keyboard keys don't work when multiple keys are pressed simultaneously. The key presses that don't show up on the computer or seem to have disappeared are said to have been "ghosted". On most keyboards this happens with many three key combinations.

Imagine playing your favorite video game and not being able to, say, run diagonally and fire your weapon at the same time (say pressing a, w, and g simultaneously). This is a result of the internal design of most existing keyboards.

What is Key Rollover?

X-key rollover tells you how many keys can be pressed down at once, while still being registered by the computer (6-key rollover or 6KRO, for example, can register 6 keys at once, plus 4 modifier keys). N-key rollover or NKRO can register any and all keys at once, in theory - though this isn't always true in practice.

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