usbRecognized Blog
Hardware testing guides, browser API tutorials, and device diagnostics tips — all designed to help you verify your equipment without installing any software.
Audio Loopback Latency — What Playback Tests Cannot Tell You
Speaker tests confirm output works but not timing. Round-trip latency from mic to speaker determines whether music, calls, and games feel natural.
Print Quality Test — What Your Printer Self-Test Misses
Targeted print test patterns reveal what the self-test hides: resolution, registration, density, and banding — and when to clean, replace, or service.
USB Bus Contention — Why Your Devices Slow Down Together
Many USB problems stem from shared-controller bandwidth contention, not faulty devices. Map your topology and reconfigure for stable performance.
Webcam Real-Stream Test — What the Other Side Actually Sees
Your preview shows 1080p but the stream may not. Use getStats() to measure actual resolution, frame rate, bit rate, and packet loss leaving your machine.
Does a Higher Refresh Rate Actually Reduce Input Lag or Not?
A high refresh rate reduces motion blur and part of display latency. Learn what 144Hz changes, what it does not, and where the rest comes from.
Keyboard Chattering: Clean, Swap the Switch, or Replace?
One click registering twice is chattering. Compare cleaning, switch replacement, and buying a new keyboard by cost, risk, and when each option makes sense.
How Many Dead Pixels Qualify for a Warranty Replacement?
Dead pixel warranty limits are stricter than buyers expect. Learn the ISO 9241-307 classes, how brand policies differ, and what gets a claim approved.
Mouse Polling Rate: Is 1000Hz Really Better Than 500Hz?
A 1000Hz mouse reports twice as often as 500Hz, but the real gain is smaller than the spec suggests. Learn when polling rate matters and when it doesn't.
NKRO vs Ghosting: Why an NKRO Keyboard Still Drops Keys
NKRO stops ghosting but does not guarantee every key registers. Learn the USB HID report limit, why high-KRO boards drop keys, and how to test yours.