Powerku Compact 4k HDMI To HDMI Audio Extractor HDMI Audio Extractor Optical Toslink SPDIF + 3.5mm Stereo Audio Output HDMI Audio Splitter Adapter Digital Audio Ac3 DTS Extractor 4k x 2K Compact Convenient,Suitable for various HDMI source devices,Most of the devices do not need to power supply,When the converter box connected to a non-standard HDMI interface or HMDI cable is required to access the 5V/500mA external power supply. One HDMI Input to one HDMI Output, One SPDIF digital audio output and 3.5mm Stereo audio output with 3.5mm to RCA L / R Audio Cable SPDIF Output Supports Upto 5.1CH Dolby Digital 5.1CH, DTS 5.1CH Audio; RCA Analog L/R Output Supports 2CH PCM Stereo Audio 3 audio EDID mode: PASS: SPDIF output audio format depends on the TV EDID; 2CH: SPDIF output audio format is PCM 2CH; 5.1CH: SPDIF output audio format is 5.1CH (the source audio must be 5.1CH) Compatible with 1.4 HDMI, 4K Ultra HD,1080P/60Hz, 3D/24Hz; 4K x 2K, 24/50/60fs/1080P/1080i/720p/576p/576i/480p/480i