StarTech.com 3.3 ft. (1 m) USB C to DisplayPort 1.2 Cable - Bidirectional - 4K 60Hz - Thunderbolt 3 - USB Type C Adapter Cable (CDP2DP1MBD)
OR DP 1.2 TO USB-C DISPLAY CABLE - BIDIRECTIONAL VIDEO ADAPTER CABLE 4K 60HZ/HBR