Displayport 1 4 Cable Length Limit

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.

Displayport 1 4 cable length limit.

When using cables with two different ends the distance limit will be subject to whichever type of connector has the shorter maximum distance. For example a standalone hdmi cable can go up to 65 while a standard displayport cable can go up to 15. That gives displayport 1 4 a maximum total bandwidth of 32 4gbps and a maximum total data rate of 25. Using anything beyond that increases the chances of the risks mentioned previously.

The displayport 1 4 standard was first published in march 2016. 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. Ymmv with cheaper cables. Working up to 165hz.

Now i m using one 2 meters cable and two 3 meters cables with two active displayport extenders between them to drive a 2560x1440 monitor at 165hz. According to dell the maximum recommended cable length to ensure optimal performance is 1 8 meters 6 feet. Slim hdmi cables premium hdmi cables hdmi. Below is a list of common a v signal types and their length limitations.

Using a displayport cable beyond 1 8 meters in length may cause data loss and a negative impact to display quality. Working up to 165hz. If you re just looking to buy a passive hdmi cable then your realistic maximum range is around 25ft. This decision limited confusion in the market place but set the maximum limit for a certified displayport cable at 5 metres.

Therefore an hdmi to displayport cable will be stuck at 15 for its maximum length. I ll add that these are the highest quality most expensive cables i could find. See our longest displayport cable here. Displayport 15 meters about 49ft dvi digital 5 meters about 16 5ft.

These standards have been defined by industry associations. While it didn t introduce any new transmission modes and therefore did not increase the available bandwidth or data rate it did maintain the strong showing from displayport 1 3. Cable matters sells a wide variety of options in that category.