Certified to Standard HDMI 1.4, Audio Return Channel (ARC), 3D, Supports 3D resolutions via HDMI® up to 1080p (Dual Stream), 4K, For highest resolutions from 4096 x 2160p @ 24Hz, HEC ( Ethernet Channel ) up to 100 Mbit/s, Transfer rate >10 Gbit/s, Gold-plated contacts