What is an HDMI Cable?

High-Definition Multimedia Interface (HDMI) is a proprietary audio/video interface for transmitting uncompressed video data and compressed or uncompressed digital audio data from an HDMI-compliant source device, such as a display controller, to a compatible computer monitor, video projector, digital television, or digital audio device. HDMI is a digital replacement for analog video standards.

Applications:

• Computers
• Blu-ray Disc and HD DVD players
• Digital cameras and camcorders
• Gaming consoles
• Mobile phones
• Legacy compatibility

HDMI transmits signals digitally in an uncompressed format that produces excellent images and good quality sound.Originally developed by the Electronics Manufacturers Alliance, HDMI is now the standard for connecting consumer audio/video components.

Laptops, PCs, and computer monitors include a choice of HDMI or DisplayPort ports. If you're a gamer looking for high-resolution images and extremely low latency, DisplayPort may have some advantages. For all applications up to 4K/60 Hz, including 4K/60 Hz, HDMI and DisplayPort can be considered equivalent interfaces, and you can use either of them.

How Do I Choose the Right HDMI Cable?

The most important factors in choosing an HDMI cable are:

• Connector Type
• Resolutions to your video source and display
• Distance between devices
• Special-Uses, such as installing the cable through walls or in moist or dusty environments

Aside from the size difference, the three connectors work exactly the same way. There are three types of HDMI connectors: Standard, Micro, and Mini.

• Standard HDMI connectors are commonly found on streaming sticks, computer monitors, TVs, gaming consoles, and desktop computers
• Mini HDMI connectors may be found on devices like camcorders, DSLR cameras, laptops 
• Micro HDMI connectors appear frequently on notebook computers, action cameras, some smartphones, and tablets

What Are Some Special-Use Considerations for HDMI Cables?

Running HDMI Cables through a Wall 

If you want to get an HDMI cable through a wall, you'll have to find a CL2 or CL3 cable. Because these cables have a fire-resistant sheath, they can be used in this situation. Also, check local fire regulations to make sure you're using compliant cables. 

HDMI wall panels can be added from the point where the cable leaves the wall to complete the installation in a professional manner. If you don't want to use cables through the wall, then you can do it with a wireless HDMI extender. 

Outdoor/Industrial Installations 

For situations that may be exposed to dirt, dust, or elements, such as outdoor signage, home furnishings on the factory floor, or on the terrace with cinema installations, care needs to be paid to the connection between dust and moisture, and typically, you can use IP68 cables. IP68-rated HDMI cable can be immersed in up to 1.5 meters of water for up to 60 minutes.

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