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Frequently Asked Questions about HDMI Cables

HDMI also known as "High-Definition Multimedia Interface" is a type of digital interface that delivers uncompressed audio and video information between a source and a display. You can use these cables and adapters to connect televisions, monitors, projectors, and more to a video source. You can find affordable HDMI cable here on eBay.

How do you choose the right HDMI cable?

That depends on the type of audio and video you are trying to transmit. There are several different versions of HDMI, each with its own transmission capacity. All versions of HDMI are compatible with each other, but it might not transmit at the intended resolution and refresh rate unless the video source matches up with the bandwidth of the cable.

  • Standard HDMI cable: This cable is designed for 720p and 1080i video, making it suitable for upscaled DVD players and broadcast, cable, and satellite television. Some cables come with a dedicated data channel just for Ethernet.
  • High-speed HDMI cable: This cable handles 1080p, stereoscopic 3D, deep color, and 4K resolution video at 30 hertz. Like the standard cable, some high-speed cables have a dedicated Ethernet lane.
  • Premium high-speed HDMI cable: This cable was released alongside HDMI version 2.0 to meet the higher data transmission demands of the technology. It handles all manner of 4K resolution video at various refresh rates. It also introduced the HDR10 standard for high dynamic range video, which produces greater contrasts between dark and light colors. The cable is designed to minimize interference from wireless signals. You can purchase one with an Ethernet channel.
  • Ultra high-speed HDMI cable: Released alongside HDMI 2.1, this cable can handle up to 48 gigabits of data per second, which allows it to transmit uncompressed 4K, 5K, 8K, and even 10K video at 120 hertz. HDMI 2.1 also supports HDR10 Plus, a type of HDR which can dynamically adjust brightness levels down to individual scenes or frames.
Are there different types of HDMI interfaces?

Yes, there are five different standards, four of which are in use. The Type A interface is found in most televisions and monitors. It is typically just referred to as "HDMI." Type C and D are known as "mini" and "micro" HDMI, respectively. They are sometimes used in portable devices. Type E is designed for automotive systems. It has a locking table to prevent the cable from coming loose. The interfaces are physically different but may work together with the use of an adapter.

What is the maximum possible length of an HDMI cable?

Although no maximum length has been set, the standard HDMI cable can reach 50 feet or approximately 15 meters before the quality of the signal starts to degrade. It is possible to double the length with the use of cable boosters, and you can extend it even further with networking cables.

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