Super Grid Transitions Video Wall 4K
https://elements.envato.com/super-grid-transitions-video-wall-4k-TWMNG6A
Free 
Vertical Super Grid Transitions Video Wall 4K
https://elements.envato.com/vertical-super-grid-transitions-video-wall-4k-ZASXMX3
Free 
Maxi Grid Transitions Video Wall 4K
https://elements.envato.com/maxi-grid-transitions-video-wall-4k-LH8XVCK
Free