The EVSW1040 is a high performance 4 by 1 HDMI switcher with Quad-View and Picture-in-Picture (PIP) capabilities and seamless switching. As a switcher, it can seamlessly switch the four HDMI inputs freely. It supports four HDMI inputs/sources to be displayed on one screen either equally in Quad-View mode or with a larger main source in PIP mode. The product can be controlled through the front panel button control, IR control, and RS232 control. The product provides an S/PDIF link to output the HDMI source audio at the same time.