Displayport Cable Length Limit 4k

According to dell the maximum recommended cable length to ensure optimal performance is 1 8 meters 6 feet.

Displayport cable length limit 4k.

A long time ago i was looking for the maximum length that my displayport cable could be to connect a 1440p 144hz monitor to my 980 ti. 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. This decision limited confusion in the market place but set the maximum limit for a certified displayport cable at 5 metres. I ll add that these are the highest quality most expensive cables i could find.

2 0 m connector number. I tried huge numbers of cables and different. All standard displayport cables support rbr hbr high bit rate and hbr2 high bit rate 2 which can support 4k at 60hz. 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.

Dpcp displayport content protection hdcp high definition content protection. 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. 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. Ymmv with cheaper cables.

It would seem that the answer is only a mere 10 feet but i can t actually find this on the dp site or in any documentation. I discovered that the maximum length is about 15 feet give or take a couple feet based on the quality of the cable. Using anything beyond that increases the chances of the risks mentioned previously. 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.

I realize that it takes some juice to power 4k 60hz but i was really hoping to find a cable that was at least 15 feet long.