Cingk 4K HDMI Audio Extractor,HDMI to HDMI with Optical Toslink Digital Audio and L R Stereo Analog Audio Output Support HDMI V1.4 4Kx2K Ultra HD 1080P Full HD 3D Extract the digital hdmi audio signal from the HDMI input and convert it to 2 channel analog stereo output 2RCA R/L or 5.1 channel Audio output Optical SPDIF Audio is selectable PASS/2.1CH/5.1CH. Gold plated connectors ensures good audio and video quality. Metal housing keeps good heat dissipation;Supports 24 bit /deep color 30bit, 36bit per channel (36bit all channel) deep color HDMI Ver. 1.4 ,HDCP & CEC Pass Through. supports up to 4K 1080P full HD resolutions and 3D video. Audio PASS to HDMI supports 7.1CH; SPDIF supports DD/DTS and DD+ Audio. L/R supports 2CH PCM stereo audio Suitable for various HDMI source devices like Roku or Chromecast without dedicated audio output as well as Blu-ray/ DVD/ HD player, cable/satellite box, Amazon Fire TV, Apple TV, PS3/4, Xbox, PC/laptop, HD camera, HD DVR etc To get 3D, all units connected to the splitter outputs must support 3D. For product issue or any other question,please contact us first, 24 hours give a satisfactory solution