The device is one 3PORT HDMI Switcher that can do switch any one of the three input HD source to one HD Display, it supports the feature of PIP, ARC, 4K, 3D and also it can do audio extract by the Toslink port and LR port.

This product is a high performance 4 by 1 Quad Multi-Viewer with seamless switcher. It supports four high definition input source display on one screen, and have three multi-view effect mode. As a switcher, it can also seamlessly switch the four HD input freely. The product can be controled by various ways, through the front panel button control, IR control,  RS232 control etc. The product provides an S/PDIF link to output the HDMI source audio at the same time.