A standard DisplayPort cable, including older cables, will work for any DisplayPort configuration including 4K and multi-stream capabilities. All certified DisplayPort cables support HBR2 (High Bit Rate 2), which can support 4K at 60Hz, or up to four 1080p displays using multi-stream.
While these same cables can in many cases be used with the latest-generation HBR3 and Display Stream Compression (DSC), DP8K-certified cables are specially constructed to ensure the best performance for these high-bandwidth applications.
DisplayPort uses packetized data, similar to USB and ethernet, to send digital diesplay and audio data. Unlike older video interfaces, you don’t get a “better” picture or other incremental improvements with a more expensive cable, but a poor quality cable could lead to data errors and obvious corruption of the video or audio data, and may be less reliable over the long term.
It is important to avoid low-quality DisplayPort cables to prevent unexpected video or audio problems, and sometimes even system power-up problems. Always buy cables from a reputable computer system or accessory brand. Or safer yet, buy a cable that is DisplayPort certified by checking the listings on this website.
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