Amazon.com: Kanex Pro KanexPro Active Fiber High Speed DisplayPort 1.4 Cable - 20M Length : Electronics
What Is The Maximum Length Of A DisplayPort Cable? | by Sustema | The Command Center Experts | Medium
Amazon.com: j5create DisplayPort to 4K HDMI Cable- Supports up to 4K x 2K & 3D | Male to Male HDMI to Displayport | Cable Length 6ft | Compatible with Mac or PC : Electronics
DisplayPort Cables, DisplayPort Docks, and DisplayPort Adapters from Cable Matters