Amazon.com: 4K HDMI Multi Viewer Switch 4x1, Quad Seamless HDMI Switcher, 4 in 1 Out with Loop Split Screen, 5 Display Modes with IR Remote for Security Camera, Gaming : Electronics
Best HDMI & VGA 4x1 1080p Quad Multi-Viewer - J-Tech Digital
HDMI Multiviewer Switch 4x1,AUBEAMTO Quad Seamless Switcher 4 in 1 Out with IR Remote Control, Support 4K Full HD and 5 Display Modes for Security Camera, Gaming Consoles Audio/Video Switch - Newegg.com