1、4 in 1 Out: 4K eARC/ARC HD Multimedia Interface 1 input to 4 output switcher output via fiber SPDIF or L/R with sound extractor. Does not support sound return via HD Multimedia Interface source without display device. 2、Wide Compatibility: Compatible with all operating systems such as for Win, for OS X, for Linux, and also works for Harmony, for one X, projectors, and more. If your TV has an eARC or ARC port, you can connect the eARC/ARC bar to the In1 port of the switcher to send sound from your source. 3、Sound Extraction: The HD Multimedia Interface switcher extracts sound via optical digital sound SPDIF. Supported HD Multimedia Interface sound formats include DTS-HD/trueHD/DTS/AC3/DSD. 4、Intelligent EDID Management: This HD Multimedia Interface switch is designed with 1 input port and 2 output ports, you can select HD Multimedia Interface source via IR remote control for easy access. 5、Package Includes: You will receive 1x4 4K Switcher, power adapter, IR remote control, and an instruction manual for easy setup and use. Item Type: 4K EARC HD Multimedia Interface Switch HD Multimedia Interface Resolution: 4K at 60Hz/4K at 30Hz/1080p/1080i/720p Video Format Support: 24/30/36 bit deep color Sound Format Support: DTS-HD/trueHD/DTS/AC3/DSD Maximum Transmission Bandwidth: 600MHZ Maximum Transmission Rate: 6Gbps Input Cable Length: ≤8m / 26.2ft AWG26 HD Multimedia Interface Standard Cable for 4k at 30hz; ≤3m / 9.8ft AWG26 HD Multimedia Interface Standard Cable for 4k at 60hz Output Cable Length: ≤8m / 26.2ft AWG26 HD Multimedia Interface Standard Cable for 4k at 30hz; ≤5m / 16.4ft AWG26 HD Multimedia Interface Standard Cable for 4k at 60hz Remote Control Battery: Approx. AAAx2 (not included) 1 x HD Multimedia Interface Switch 1 x Remote Control 1 x Adapter 1 x User Manual