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A KVM switch lets one keyboard, monitor, and mouse control multiple computers. Here is how it works and how to choose one.

A plain-English guide to motherboard chipsets, including PCIe lanes, CPU support, overclocking, ports, storage, and upgrade limits.

Understand what a CPU does, what cores and threads mean, how model numbers work, and when CPU speed matters most.

A USB-C dock may run monitors and accessories but fail to charge. Check Power Delivery wattage, cables, ports, and power settings.

Troubleshoot one USB-C port that will not charge, transfer data, display video, or recognize devices.

Fix a webcam that shows a black screen, is blocked by privacy settings, is already in use, or is missing from your video app.

Sharpen a blurry webcam by cleaning the lens, fixing focus and lighting, and checking resolution settings in your video app.

Fix a USB microphone that is detected but silent, missing from input settings, blocked by permissions, or failing inside one app.

When every USB port seems dead, use these driver, power, BIOS, and hardware checks before replacing parts.

USB version names can be confusing. Here is what USB 2.0, 3.x, USB-C, Thunderbolt, and USB4 actually mean for speed and compatibility.