At what length do DisplayPort cables start giving you trouble?
If you're on the market for a new DisplayPort cable, it's worth keeping in mind that longer doesn't always mean better. This length is when trouble begins.
As video resolutions and refresh rates increase, DisplayPort cables can start to exhibit performance issues. For the best quality, passive copper-based DisplayPort cables should ideally be no longer than 6 feet. This length ensures support for resolutions like 4K HDR at high refresh rates like 144Hz without any visual artifacts or connection dropouts.
At around 10 feet, users may begin to experience limitations in resolution and refresh rate capabilities, with 4K resolutions potentially dropping to 1080p or 1440p. When cables extend to about 15 feet, stable 4K video is no longer guaranteed and lower resolutions could be capped at slower refresh rates. However, performance issues only become a major concern with longer DisplayPort cables measuring 15 feet or more.
For most users, sticking to passive copper cables measuring 6 feet or less will provide reliable DisplayPort video connections. Although active copper or fiber optic cables can extend the range to 15 to 100 feet, they come with significantly higher price tags. For most people, the added cost is likely unnecessary since DisplayPort is primarily used for monitor connections, which are usually within a 6-foot range.
Daisy-chaining monitors via MST further emphasizes the importance of using short cables, as two 3-foot cables already reach the 6-foot limit. While DisplayPort may eventually be superseded by USB 4 and Thunderbolt 5, the shorter cable lengths remain the practical standard for most computing setups and productivity applications.
Written by urgent.news from Engadget's reporting — not their text. Machine-written — may contain errors; check the original before relying on it.
