ProAV 4K HDMI Dongle Adapter Ring – Supports up to 32Gbps input, 4K@60 4:4:4 with HDR. Includes Combination Lock with (4) pigtail dongle adapters: (1) DisplayPort 1.4 (m) to HDMI (f), (1) Mini-DisplayPort 1.4 (m) to HDMI (f), (1) USB Type-C (m) to HDMI (f) and (1) HDMI Port Saver Type A (m) to Type A (f); (1) HDMI Infrastructure Cable Harness, (1) harness locking tool & extra screw/lock. With printed instructions. VESA Certified. USB Certified.