AU4X1 is an advanced HDMI v2.0 4x1 Switch, supports 4K@60Hz, ARC, HDR, Dolby Vision and Audio Extraction
Audio Extraction Features: a dedicated HDMI audio-only output (HDCP v1.4) to provide the best compatibility and supports all audio formats for HDMI receivers; Optical audio outputs supports audio formats up to DD5.1CH and DD+; 3.5mm headphone output supports incoming HDMI 2CH stereo audio formats.
Integrated programmable input auto switching function, which can be enabled or disabled for best flexibility
HDMI OUT A port supports CEC, HDMI audio-only OUT B port does not support CEC. Please do not use OUTB for CEC related application.
Lifetime technical support and one-year warranty with free extension to two-year (check user manual).