What is the recommended DisplayPort cable length?

As with other cables, the length has a direct impact on the quality of the information being transmitted. The greater the distance, the higher the risk of transmitting a lower image and sound quality. In some cases, complete data loss.

There are 2 lengths to keep in mind when working with DisplayPort cables:

1. Standard: The recommended cable length to ensure optimal performance is 1.8 meters (6 feet).

2. Extended:DisplayPort cables can run up to 5m supporting up to 4k resolutions at 60fps before experiencing signal degradation.

If we think of this in a mission-critical setting, it quickly becomes apparent why cable lengths are an important consideration.

Using anything beyond the recommended lengths increases the chances of the risks mentioned previously. However, it is still possible to use longer DisplayPorts without being affected by those risks.

If for some reason you need to use a long DisplayPort, there exist some options to do so without affecting the quality of the signal. For instance, using high-quality cables shielded with foil and braid layers to protect it from EMI/RFI interference.

Another option for applications requiring 100+ ft. DisplayPorts is using signal boosters such as the B121–000. This device will even support monitor resolutions of up to 2560x1600 (60Hz) and 1920x1200 (120Hz).

Due to their reliability over long distances, DisplayPort cables are the preferred audiovisual connection used in control rooms. However these cables are also ideal for video presentations, point-of-sale displays, classrooms and other applications requiring high-resolution video and multi-channel audio. DisplayPort can be used with most recent computers /laptops, CPU monitors, projectors and HDTVs.

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