3 ft 20 pin DisplayPort Extension Panel Mount Cable – M/F – BCI Imaging Supplies
TIL that there are monitor manufacturers who use DisplayPort cables where pin20 is also used and which can cause interference and even damage the graphics card/PC - depending on the situation :
StarTech.com 3 ft / 91 cm 20 pin DP DisplayPort Extension Panel Mount Cable - DisplayPort to
DisplayPort Pin 20 Problem einfach erklärt - Welt der Elektronik
Existe un problema con el DisplayPort 1.2 y el Pin 20? | El Chapuzas Informático
StarTech.com DISPLPORT6L 6 ft. Black Connector A: 1 x DisplayPort (20-pin) Latc 65030827812 | eBay
DisplayPort Cable 20 pin Male Display Port LOCKING CLIPS DP Monitor 1m 2m 3m 5m | eBay
5 metre DisplayPort cable male - male, power pin 20 not connected | ACT
Dell u2711 displayport problem "entering power save mode" - Page 19 - Dell Community