You are looking at HP original equipment/standard/included DisplayPort 1.2 6ft cables

They came "included in box" with HP Z24i G2 (1920x1200) and HP Z27n G2 (2560x1440) monitors, but were not used because the office that deployed those monitors have standing desks which required 15' DP cables, so here they are!

DisplayPort to DisplayPort (Male2Male)

Version 1.2