DataVideo SE-500MU 4-Channel HD Video Switcher
The Datavideo SE-500MU is one of the most affordable 1080p switchers currently available. It is controlled by the free tablet app, which is available on the Apple App Store and Google Play Store. The program can also be found as a free download for Windows and Mac computers.
The SE-500MU offers 4 HDMI inputs, a program output, and a quad preview. It supports video resolutions up to Full HD 1080p, and it can perform cut, mix, and wipe transitions, fade to black, PIP, Split Screen, and Luma Key.