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 SilverSonic HDMI 2.1 is engineered in the USA and delivers maximum bandwidth that actually exceeds the current 2.1 specification. Lengths over 3.0 Meters feature a hybrid optical/traditional conductor with expanded data capacity to maintain signal strength (with zero loss) at longer lengths.