NKRO ANTI-GHOSTING BENCHMARK

N-Key Rollover (NKRO) & Anti-Ghosting Test

Test N-Key Rollover (NKRO) and anti-ghosting capabilities on your keyboard. Verify simultaneous keypress limits and diode matrix protection.

HIGH-PRECISION 1000HZ KEYBOARD DIAGNOSTIC

Pro Custom Mechanical Keyboard Suite

Switch between Windows ANSI 104 and Apple Mac 3D keycaps. Zero-latency microsecond bounce profiler, NKRO gaming combo matrix & APM speedometer.

Active Input Telemetry:Awaiting physical keypress...

Press any keys simultaneously on your physical keyboard to audit matrix signals...

DISPLAY TEST ONLINE // CNC PRO 3D CHASSIS [WINDOWS ANSI]

CAPS

NUM

SCRL

Tested Matrix

0 / 84 (0%)

Active Held

0 Held

Peak NKRO

0 Keys

Chatter Defects

0 Defects

Typing Speed

0 APM

NKRO Protocol

READY

DIAGNOSTIC PROTOCOL

How To Run This Display Test (01, 02, 03)

Preparation

Clean your monitor surface, disable ambient light sensors, and set your display to native resolution and refresh rate.

Execution

Enter full-screen mode (F11) and use the diagnostic suite controls to progress through the test patterns.

Evaluation

Observe anomalies from different viewing angles in a dark room. Reference our testing guides to interpret your results.

HARDWARE ARCHITECTURE

Panel Technology Breakdown

Professional IPS (In-Plane Switching)

Superior color accuracy and viewing angles. Used in reference monitors. Prone to minor 'IPS Glow' in dark environments.

Consumer IPS (Fast IPS / Nano IPS)

High refresh rates and good response times for gaming, but lower static contrast ratios compared to VA.

VA Panel (Vertical Alignment)

Excellent deep blacks and high contrast (3000:1+). Often used in curved displays. Can exhibit 'black smearing' in fast motion.

OLED (Organic LED) & QD-OLED

Self-lit pixels deliver true black, near-instant response times, and infinite contrast. Subject to Auto Brightness Limiting (ABL).

Technical FAQs & Helpful Content

Frequently Asked Questions (N-Key Rollover (NKRO) & Anti-Ghosting Test)

Everything you need to know about this diagnostic instrument, calibration procedures, and display technical standards.

01.What is N-Key Rollover (NKRO)?

NKRO allows every key on the keyboard to be pressed simultaneously without key blocking or ghosting.

02.What is 6KRO vs NKRO?

6KRO restricts simultaneous key reports to 6 keys, while NKRO allows unlimited concurrent key presses.

03.What is keyboard ghosting?

Ghosting occurs when pressing multiple keys causes an unpressed key to falsely trigger due to missing PCB diodes.

04.How do I perform an NKRO rollover test?

Press both palms down across your keyboard matrix; the counter records total simultaneous registered keys.

05.Why do some keyboards require Fn+N to enable NKRO?

Some keyboards default to 6KRO for legacy BIOS compatibility; Fn+N toggles full USB NKRO mode.

06.Is NKRO important for gaming?

Yes, competitive games require complex multi-key chords (e.g. WASD + Shift + Space + Skill keys).

07.Do membrane keyboards support full NKRO?

Most membrane keyboards are limited to 2KRO or 6KRO; mechanical keyboards with diodes support full NKRO.

08.Can Bluetooth keyboards support NKRO?

Bluetooth HID profiles typically limit reports to 6KRO to conserve wireless bandwidth.

09.Does Web Audio give feedback during NKRO testing?

Yes, optional audio feedback triggers as new simultaneous keys register in the matrix.

10.How do I export my NKRO test score?

Click 'Download Certificate' to export a cryptographically signed report of your peak NKRO count.

Not sure which test to run next? Need troubleshooting advice?

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