PureLink Pure Install series PI5000-030 - certified DisplayPort cable (Displayport 20pin male to Displayport 20pin male) - 3.0m - black (Accessories) 5
I needed a longer DP cable for the Asus ROG SWIFT PG278Q monitor and I had read in the test's that not every DP cable done on this monitor its service reliably. This cable but I can fully recommend this monitor and these requirements.