SKSL HDMI Digital Audio Converter Support 3 Modes for Audio Output Blue-Ray Player LPCM 4k Video,LPCM 7.1CH HDMI Audio Converter 1X HDMI input and 1X HDMI output can sync separation HDMI audio signal. Supports 1x SPDIF optical digital audio output, multi-channel RCA analog audio output Supports 12-bit Deep Color Full HD,3D and 4K2K video DC 5V US power adapter, High quality, low noise support 4K video Supports 3 modes for audio output. You can switch among multi-channel, stereo (2CH) and mute. Support multi-channel LPCM digital audio to analog output, up to 7.1CH.