What Is The Maximum Length Of An HDMI Cable?

How Far Can HDMI Cables Be Run While Still Maintaining High-Quality Images? 

This is a question we often get from our clients at Sustema when conducting a needs analysis for their operations center furniture. It can get tricky to connect your devices to your home TV, now imagine doing so for an operations center working 24/7 using a large format CCTV video wall display and multiple workstations each handling 4 to 6 LCD monitors. In this article, we will go over the best practices when running cables in the communications center and offer some alternatives in case you need your HDMI cable signal to reach further distances. 


HDMI

HDMI, short for high definition multimedia interface has become today’s standard for transferring high-quality audio and video between devices. Its low price point and data transfer speeds between 2.25-10.2 Gbps depending on the brand makes it a preferred choice among consumers to run multiple television displays from a computer, streaming, and playing video games online. However, a major drawback is that whenever longer cables are used, users experience a considerable loss of the image quality and speed. This is mainly due to a power loss with longer cables resulting in lower definitions. 

Now the question remains, at what length does one get affected by lower image resolutions when using HDMI? According to the test conducted by the HDMI Authorized Testing Center (ATC Tests), HDMI cables of up to 45 feet long are considered reliable in terms of speed and image quality. Note that you can still buy 50, 100, and even 200-foot cables, however, these do not comply with industry quality standards and do not support all video size formats required by mission-critical communication centers.