
What Cable is Used for HDMI?
Hdmi Cable Construction Essentials
HDMI cables transmit digital audio/video signals through copper conductors or fiber optics. Standard cables use:
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Copper Core: Oxygen-free copper (OFC) wires for conductivity, shielded against electromagnetic interference (EMI).
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Multi-layer Shielding: Aluminum foil + braided mesh to block signal noise.
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Connectors: 19-pin gold-plated plugs ensuring corrosion-resistant contact.

Why Cheap HDMI 2.1 Cables Fail at 4K/120Hz?
In the world of high - end video setups, achieving a smooth 4K/120Hz experience is a goal for many, especially gamers and home theater enthusiasts. Hdmi 2.1 Cables are designed to handle such high - bandwidth demands, but not all HDMI 2.1 cables are created equal. Cheap versions often fail to deliver the promised performance at 4K/120Hz, and here's why.