4K decoding is only supported via HDMI input, not supported via USB connection.
Supported decoding formats: AV1, AVS2, HEVC, VP9, H.264, SHVC, up to 4K 60fps 10bit video decoding.
Compatible HDR specifications: BBC HLG, HDR10, Dolby Vision HDR, Technicolor/Philips JHDR, HDR10+.