Displayport Cable Length Limit

While displayport offers support for cables of varying lengths the maximum cable length that dell recommends for optimal performance is 1 8 meters around 6 feet.

Displayport cable length limit.

Using anything beyond that increases the chances of the risks mentioned previously. All standard displayport cables support rbr hbr high bit rate and hbr2 high bit rate 2 which can support 4k at 60hz. When using cables with two different ends the distance limit will be subject to whichever type of connector has the shorter maximum distance. Because displayport was so ahead of its time in terms of bandwidth and resolution capability when it was launched strict limits were set on what cable lengths could be certified.

Maximum length of displayport cable for optimal performance when using display port cables the length of the cable can greatly impact display quality and create data loss. The displayport standard does not specify any maximum length for cables though the displayport 1 2 standard does set a minimum requirement that all cables up to 2 meters in length must support hbr2 speeds 21 6 gbit s and all cables of any length must support rbr speeds 6 48 gbit s. Therefore an hdmi to displayport cable will be stuck at 15 for its maximum length. For example a standalone hdmi cable can go up to 65 while a standard displayport cable can go up to 15.

A standard displayport cable including the so call displayport 1 1 cables will work for any displayport configuration including the new capabilities enabled by displayport 1 2 including 4k and multi stream capabilities. If you can come up with a superior manufacturing technique or a design with better signal transmission properties or a manufacturing process with better tolerances then you can make a. Therefore an hdmi to displayport cable will be stuck at 15 for its maximum length. It just depends on manufacturing quality and tolerances.

For example a standalone hdmi cable can go up to 65 while a standard displayport cable can go up to 15. According to dell the maximum recommended cable length to ensure optimal performance is 1 8 meters 6 feet.