DVDO-Matrix-44SS-VW is a 4K 4x4 seamless matrix switcher and video wall controller.

With its video wall function, it can output 10 different display modes including 2x2, 4x1, 1x4, etc... that can be saved as presets. 

It also features a web browser interface module for control and configuration of the matrix when used stand-alone or with a third party control system.

Control options include front-panel push buttons, IR remote control, RS-232 interface and TCP/IP.