HDMI Video & Audio Sync: Supports mirroring the same source on two HDMI display devices, or connect 4K TV and soundbar to sync output 4K HDR Dolby Vision video and Dolby Atmos 7.1ch audio. Note: Not support extended display or ARC/eARC. 4K HDMI Splitter: Supports up to 4K@60Hz, 2K@75/120/144Hz, and 1080P@60/120/240Hz. Compatible with ultra-wide formats like 3440×1440@60Hz or 3840×720@60Hz..., requires 18Gbps bandwidth. For best performance, use HDMI 2.0 cable (16.4ft for 4K, 32.8ft for 1080P) 4K & 1080P Mixed Resolution: Featuring M-A-B EDID dial. M- Mix: Each display shows max resolution if gap 1 level; A-copy A: Both displays follow Output A's EDID; Output B downscales if needed. B-Copy B: Both displays follow Output B's EDID; Output A downscales if needed Wide Compatibility: HDMI 2.0, HDCP 2.2, HDCP bypass, HDR10. Supports Dol-by Digital 7.1, Dol-by Atmos 7.1, DTS:X, TrueHD, DTS-HD Master, LPCM 2.1/5.1/7.1. Inputs work with PCs, PS5, etc.; outputs work with TVs, projectors, monitors