StarTech.com 6ft/1.8m USB C to DisplayPort 1.4 Cable - 4K/5K/8K USB Type-C to DP 1.4 Alt Mode Video Adapter Converter - HBR3/HDR/DSC - 8K 60Hz DP Monitor Cable for USB-C/Thunderbolt 3 (CDP2DP146B)

I use this cable to connect my 27" 4k monitor as a second screen for an iMac Pro. The cable is conveniently long so it can be arranged inside the monitor arms. Picture quality is perfect, without artefacts or annoying flickers. I haven't noticed any difference between using this cable or using the monitor's originally supplied mini DP to DP cable connected to my laptop.In effect, it does what it say on the tin and I would recommend for these types of applications.

I tested cheap cable before and screen was flickering when was conected to my laptop - UW 34” 6k screen, asus laptop. The problem disappeared with this cable. 100% recommended

This cable does not work at all with the MacBook Pro 16" 2021, tested with multiple monitors. This seems to be an issues for users other than me too. Useless cable, they should stop selling it while this issue exists.

Other cables didn’t work with my MacBook. This one worked well. Very good though more expensive

The cable was exactly what I was looking for to connect my laptop to a screen. It supports NVIDIA G-Sync technology and 1080p @ 244Hz works nicely. The plug that goes to the laptop is a bit wobbly, but that might be the case with USB-C ports.

Works well and goes up to 4K at 60hz, which seems to be hard to find in a cable if this kind.

No complaints, works as expected

Unfortunately had to return this, as it didn't work at all. Tried with two different laptops and three different monitors :(