CONNECTS 4 HDMI SOURCES INTO 1 HDMI PORT: for seamless transitions between gaming, television and more. 4K Ultra HD: Supports up to 4K@30HZ resolutions for crisp, clean, powerful displays, HDCP 1.4 Compliant (not support HDCP 2.2). DIGITAL AUDIO Support: Dolby True HD, DTS-HD Master Audio. AUTO SWITCH ON/OFF FUNCTION: you can enable/disable auto switch function to better control your device. When the auto switch is turned on, the device will automatically switch to the most recently connected or powered-up source. PIP (Picture in Picture) feature allows you to easily preview multiple sources in one display device with a push of a PIP button on the remote. (PIP is supported up to 1080P). IR REMOTE CONTROL: Remotely control your HDMI switch with the infrared remote switcher without leaving the comfort of your seat.