I am using this to connect my carbon x1 to a LG Ultrafine 5k monitor via my egpu with DisplayPort 1.4. This bi-directional cable seems to be one of the only solutions to get this monitor working with a windows laptop. The only criticism is the overpriced price. The rest works great. I should note that it only works in 4k and I can't get full 5k output as Windows doesn't have tiling support like macOS.