When connecting to TV or display you don't always get the best audio however with this extractor you can extract audio signals from your HDMI source. By taking the original HDMI audio signal and converting it to either digital optical or analog multichannel audio. Because of this you can then output your audio signal to external speakers and extend the audio signal pathway. When you connect to 4K2K display a true video will be performed without sacrificing the quality of resolution. 
Includes 5V 2A power supply

Features

• Compliant with HDMI, HDCP 1.2 and DVI 1.0
• Supports HDMI audio sampling rate up to 192 kHz
• Supports Optical S/PDIF audio sampling rate up to 192 kHz
• HDMI supports high-bit-rate (HBR) audio
• No HDMI output connection is required to receive audio at the analog and optical outputs
• Supports 4 x 3.5mm phone jack for analog multi-channel audio outputs
• Maximum input and output HDMI cable length can run up to 15 meters at 1080p 8-bit resolution or 10 meters at 1080p 12-bit resolution
• Supports built-in audio EDID switching among LPCM 7.1CH, TV (external) EDID, and Bitstream audio
• Supports CEC bypass
• Supports 4Kx2K resolution and 3D signal
• Video bandwidth: 300Mbps / 10.2Gbps
• Input Ports: 1 x HDMI
• Output Ports: 1 x HDMI, 1 x Optical, 4 x 3.5mm Phone Jack
• HDMI Audio Sampling Rate: Up to 192 kHz
• Optical S/PDIF Audio Sampling Rate: Up to 192 kHz
• HDMI Audio Format:
• - LPCM 2/5.1/7.1CH, Dolby Digital 2~5.1CH, DTS 2~5.1CH, Dolby Digital Plus Dolby TrueHD, and DTS-HD Master Audio
• Optical Audio Format: LPCM 2CH, Dolby Digital 2~5.1CH, and DTS 2~5.1CH
• L/R Audio Format : 4 x Phone Jacks Output Format , 7.1 CH Analog Audio