The NEW DH Labs Silversonic HDMI 2.1 brings new features and a lot more bandwidth than our HDMI 2.0b Silver with a whopping 48 Gbps data transfer rate! That means higher resolutions (up to 10k), frame rates up to 120 frames per second, Dynamic HDR, & eARC (Dolby Atmos over ARC at full resolution). The DH Labs HDMI 2.1 cable is an optical / traditional conductor hybrid, engineered for maximum bandwidth that exceeds the 2.1 specification.