Displayport 1.4 specification, backwards compatible with 1.3/1.2/1.1 Pin 20 not connected Supports resolutions up to 7680 x 4320 at 60 Hz with DSC and up to 7680 x 4320 at 30 Hz without DSC Transfers video and audio signals Data transfer rates up to32.4 Gb/s Up to 32 audio channels for speakers Supports Stream Compression 1.2 (DSC), HDR, HDCP 1.4 and 2.2, HBR3 (8.1 Gbit/s) Triple shielded Gold-plated contacts Cable diameter: approx. 4.5 mm