New 4K HDMI over IP Multiview Processor with Quad View
Amazon.com: Optimal Shop 4X1 HDMI Multi-viewer HDMI Quad Screen Real Time Multiviewer with HDMI Seamless Switcher Function Full 1080P and 3D : Electronics
Processeur 4x2 HDMI 2.0 Quad-View Muxlab 500446
4x1 HDMI Quad-Viewer and Seamless Switcher (PRO-QuadView)