3 UHD 4K 60Hz. Does not convert HDR to SDR. not audio down mixer. Pls use good HDMI2.0 cable less than 3m. ---When 4K & 1080p TV work in sync, set EDID 4K mode, 4K TV to Splitter OUT 1, 1080P TV to OUT 2, set SCALER 2 ON.
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