What is the transmission distance of DP?

I. Transmission Distance of DP Cables

Currently, the transmission distance of common DP (DisplayPort) cables in the market is generally around 10 meters. This distance is the upper limit for most DP cable products to ensure stable signal quality and performance. Beyond this distance, signal attenuation and performance degradation will become significant, affecting image quality and performance indicators such as refresh rate.

II. Impact of Cable Length on Performance

Signal attenuation: As the length of the DP cable increases, signal attenuation during transmission also intensifies. This leads to a decline in image quality and may cause problems such as blurring and color distortion.

Refresh rate reduction: Long-distance DP cable transmission may reduce the refresh rate of the display. For example, some high-quality DP cables can support a 165Hz refresh rate for 2K resolution within 3 meters, but within 5 meters, it may only support a 60Hz refresh rate for 4K resolution, and within 10 meters, it may only support a 60Hz refresh rate for 1080P resolution.

Bandwidth limitation: Long DP cables may also face bandwidth limitations, preventing the transmission of high-resolution and high-frame-rate images. This affects the user's visual experience, especially when playing high-definition videos or playing games.

III. Selection of High-Quality DP Cables

Although long DP cables face performance loss issues, there are also some high-quality DP cable products on the market that optimize signal transmission performance through advanced materials and designs. For example, the 1.2 version of Kebol's DP cable can support higher resolutions and refresh rates under certain lengths. However, these high-quality products usually have relatively higher prices.

In conclusion, the transmission distance and performance of DP cables are interrelated. When choosing a DP cable, users should balance the transmission distance and performance based on their actual needs and budget.