HDMI cables are a crucial component in modern audio-visual setups, but there are many misconceptions surrounding them. In this article, we’ll debunk common myths about HDMI cables to help you make informed decisions.
Myth 1: Expensive HDMI Cables Are Always Better
Reality: HDMI transmits a digital signal, meaning it either works or it doesn’t. As long as the cable meets the HDMI specification, it will deliver the same audio and video quality regardless of price. Premium cables may offer better build quality or durability, but they don’t improve signal performance.
Myth 2: HDMI Cable Length Is Strictly Limited
Reality: Passive HDMI cables can experience signal degradation beyond 25–50 feet, especially at higher resolutions. However, active HDMI cables, fiber optic HDMI cables, or HDMI extenders can maintain signal integrity over much longer distances—even up to 300 feet or more.
Myth 3: All HDMI Versions Are Fully Compatible
Reality: HDMI is backward compatible, but not all features are supported across versions. For example, HDMI 2.1 supports 4K@120Hz, 8K, eARC, and VRR—features not available in HDMI 1.4 or 2.0. To access advanced features, both your devices and cables must support the same HDMI version.
Myth 4: Gold-Plated HDMI Cables Offer Better Signal Quality
Reality: Gold plating helps prevent corrosion and ensures a reliable connection over time, especially in humid environments. It does not enhance signal quality. Standard connectors without gold plating perform just as well under normal conditions.
Myth 5: HDMI Cables Are Only for TVs and Home Theaters
Reality: HDMI is used in a wide range of devices including computer monitors, gaming consoles, projectors, AV receivers, and professional AV setups. Its ability to transmit both high-definition video and multi-channel audio makes it extremely versatile.
Myth 6: All HDMI Cables Support 4K and 8K
Reality: Not all HDMI cables are rated for high resolutions. To support 4K@60Hz or 8K, you need High-Speed HDMI or Ultra High-Speed HDMI cables. Older Standard HDMI cables may not handle the bandwidth required for these formats.
Myth 7: HDMI Cables Can Transmit Ethernet
Reality: HDMI cables with HEC (HDMI Ethernet Channel) can transmit Ethernet signals between compatible devices, but this feature is rarely supported or used in consumer electronics. Most setups still require a separate Ethernet connection.
Quick Tips
- Use High-Speed HDMI for 4K and Ultra High-Speed HDMI for 8K and HDMI 2.1 features
- For long cable runs, choose active HDMI, fiber HDMI, or HDMI over Cat6
- Match your cable version to your device capabilities to unlock advanced features
- Don’t overspend—choose cables based on specs, not marketing claims
- Gold plating is about durability, not performance
Need Help?
Monoprice offers a wide range of HDMI cables for every setup—from basic home entertainment to professional AV installations. If you're unsure which cable is right for your devices or resolution needs, our support team is happy to help.