Professional Anti-Ghosting Detection Tool

Keyboard Ghost Key Test

Detect keyboard Ghost Key and NKRO capabilities, test conflicts when multiple keys are pressed simultaneously, evaluate keyboard gaming and professional application performance

Ghost Key Detection

NKRO Capability Test

Gaming Key Combinations

Real-time Conflict Analysis

Select Test Mode

Choose test combinations suitable for your usage scenarios, or perform comprehensive stress testing

What is Keyboard Anti-Ghosting?

• Ghost Key: The phenomenon where certain keys cannot be properly recognized when multiple keys are pressed simultaneously

• NKRO (N-Key Rollover): The maximum number of keys that a keyboard can simultaneously recognize

• Gaming Impact: Anti-ghosting performance directly affects multi-key operation experience in games

• Mechanical Keyboards: Usually have better anti-ghosting performance than membrane keyboards

• Test Significance: Helps you understand keyboard reliability in high-intensity usage scenarios

⚠️ Hardware Limitations

• USB HID Protocol: Standard USB keyboards support maximum 6 simultaneous regular keys

• Keyboard Hardware: Regular keyboards support 6KRO, high-end gaming keyboards may support 10-key or full NKRO

• Browser Environment: May have additional limitations on simultaneous key detection

• Test Design: Our test combinations are optimized for maximum 6 keys to accommodate most keyboard hardware

Keyboard Ghosting Test FAQ

Common questions about keyboard ghosting and anti-ghosting features

What is keyboard ghosting?

Ghosting occurs when pressing multiple keys simultaneously causes some keys to not register or causes unintended keys to register. This is a hardware limitation of many keyboards.

What is NKRO (N-Key Rollover)?

NKRO means the keyboard can detect any number of simultaneously pressed keys without ghosting. Full NKRO keyboards can register all keys pressed at once.

Why is anti-ghosting important for gaming?

Many games require pressing multiple keys simultaneously (e.g., WASD + Shift + Space). Anti-ghosting ensures all key presses are registered, preventing missed inputs during gameplay.

Do all mechanical keyboards have anti-ghosting?

Most mechanical keyboards have good anti-ghosting capabilities, but not all are full NKRO. Check your keyboard's specifications for its rollover rating (6KRO, 10KRO, or NKRO).

Why does my keyboard only support 6 simultaneous keys?

This is usually due to USB HID protocol limitations. Standard USB keyboards support 6 regular keys + modifiers. Some keyboards use special protocols or PS/2 connections for full NKRO.

Need More Help?

If you have questions about your keyboard's anti-ghosting capabilities, contact our support team.

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