[HDMI Splitter Audio Extractor]The 4K60hz HDMI splitter 1 in 2 out with audio extractor can duplicate/mirror one HDMI signal to two HDMI displays simultaneously and extract audio signals from HDMI source which without dedicated audio output.It can support one sink to get 4K signal and one sink to get 1080P signal at the same time.*Note:Not support extend,mirror only. [HDMI 2.0 version]up to 18G bandwidth, can support 4K60H-4:4:4, 1080p120Hz/144Hz, HDR10, HDCP2.2. No picture quality loss, no latency. [3 working modes]Three operating modes are realized by internal EDID processing. AUX output audio, please use 2.0-mode, only support PCM2.0 format stereo. optical output audio, please use 5.1-mode, support two-channel and 5.1-channel audio including PCM/DTS format. fd-mode is reserved for working mode to solve the abnormal situation.