N-Key Rollover (NKRO) Test
Test your keyboard's ability to register multiple simultaneous key presses. Press as many keys as possible at the same time to test NKRO capability.
Gaming keyboards typically support 6KRO or Full NKRO. Try pressing WASD + other keys for gaming scenarios.
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NKRO Rating
Quick NKRO Tests
Current Key Combination
Press keys to see the current combination...
Understanding NKRO
What is NKRO?
N-Key Rollover (NKRO) refers to the ability of a keyboard to correctly register N number of keys pressed simultaneously. Full NKRO means all keys can be pressed at once.
Common NKRO Levels
- • 2KRO: Basic keyboards (2 keys + modifiers)
- • 6KRO: Gaming keyboards (6 keys + modifiers)
- • Full NKRO: High-end keyboards (all keys)
NKRO Ratings
Excellent
10+ keys simultaneously
Good
6-9 keys simultaneously
Fair
3-5 keys simultaneously
Poor
Less than 3 keys
Why NKRO Matters
NKRO is crucial for gaming, especially for complex key combinations in FPS, RTS, and MMO games where multiple keys need to be pressed simultaneously.