4K 4X1 HDMI Seamless Switcher with Multiview Processor - woxcon
Amazon.com: 4K HDMI Multiviewer Switch 4x2 with PIP, PORTTA Quad Multi Viewer Seamless Switcher 4 in 2 Out with Toslink, 3.5mm Audio Output Support 4K 30Hz, 6 Viewing Modes, Downscaler for PS4/PC/DVD :
Amazon.com: HDMI Multiviewer Switch 4x1, Quad Seamless Switcher 4 in 1 Out with IR Remote Control, Support 4K Full HD and 5 Display Modes for Security Camera, Gaming Consoles : Electronics
J6 - Seamless Switcher and Splicer by NovaStar - Procom Middle East