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Enjoy High Definition Entertainment with a 20 m HDMI Cable

HDMI stands for High Definition Multimedia Interface, and is the standard type of cable for most modern devices to transfer high definition picture and audio. Choosing the right one doesn't have to be difficult if you know what you're looking for. Whatever your requirements, eBay has a 20 m HDMI cable for you.

What sort of 20 m HDMI cables are there?

There are different types of cable available, which do different things depending on what you want them for. If you are using an internet-ready device, some HDMI cables come with Ethernet capability as well, eliminating the need for a separate cable. Here are a few of the main types of HDMI cable:

  • Standard HDMI: up to 1080i and 720p.
  • Standard HDMI with Ethernet.
  • Standard automotive HDMI.
  • High speed HDMI: 1080p, 4K 30Hz, 3D, and deep colour.
  • High speed HDMI with Ethernet.
How do you know which 20 m HDMI cable you need?

If you want to transfer data or connect to the internet with HDMI, both the devices you are connecting will need to support Ethernet over HDMI - they will be labelled HEC compatible. You will then need to connect them with an HDMI cable with Ethernet. If you're just transferring sound and images - games, TV, and movies - then you just need to know what resolution your devices support, whether it's standard or very high definition like 4K or 3D. Automotive HDMI is used to mirror phone or tablet screens for maps and directions, or to share media and entertainment on the go.

Are HDMI cables backwards compatible?

Yes. Any newer version of an HDMI cable will support older, HDMI compatible devices. However, an older HDMI cable will not support newer features like 4K, so just because the cable fits the socket does not mean that it will work. When you buy a new device you may find that there is no HDMI cable supplied, so it's important to choose one that is sufficiently up to date.

Do you need an active HDMI cable?

For longer lengths of HDMI cable, the reliability of the signal can decrease a little. This can be remedied with an active cable, which boosts the signal. They do tend to be a little more expensive, but it is definitely worth it for better picture quality. Active cables are directional, so make sure that you plug the right end into each device.

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