About this item 4K HDMI Audio ExtractorThis device features one HDMI input that connects to one HDMI and AUX (RCA L/R) stereo audio output, along with a 3.5mm to RCA stereo audio cable. It allows audio to be output separately to an audio receiver without requiring your HDTV or monitor to be powered on or off. (Note: Please set the sound output of the signal source to PCM format.) High ResolutionThe HDMI audio extractor supports resolutions up to 4K2K@30Hz, 3D, 1080p, 1080i, 720p, 576i, 480p, and 480i. It supports video color formats of 24bit and deep color at 30bit and 36bit with synchronized sound. Compatible with HDMI V1.4 and DVI displays. PLEASE NOTE: If the screen does not display, try adjusting the input device resolution to 1080P or lower. (PS4 Pro and Xbox 360 do not support 4K2K@30Hz output and can only use 1080p.) Without Signal LossIt supports a maximum resolution of 4K@30Hz and bandwidth up to 10.2Gbps to ensure the synchronization of audio and video signals, with no signal