3x3 HDMI Matrix Switch w/Scaling, Video Wall, WEB GUI & Apps - $1,300
Hot Sale Support 4K60 Matrix Switcher TV Wall 3X3 2X3 Video Wall Controller - China LED Video Controller, Video Wall Controller | Made-in-China.com
4K 3x3 HDMI Video Wall Controller Big Screen Processor Multi Display Splicer 3x2 2x2 3x1 1x3 2x3 4x2 2x4 HDMI Video Controller|HDMI Cables| - AliExpress
2x2 Video Wall Controller, can daisy chain to 3x3 and larger HDMI VGA AV USB input and HDMI output HDMI matrix HDMI splitter|HDMI Cables| - AliExpress
9X9 seamless HDMI matrix with 3x3 Multi View, with RS232 - Groupe TelecoMaroc
3x3 HDMI Matrix Switcher with Video Wall
Videowall video matrix with 9 screens 3x3 HDMI DVI CVBS VGA - Cablematic
3x3 TV Video Wall Controller HDMI 9x9 Matrix Switcher RS232 Security Processor | eBay
AVI HDMI 3x3 Video wall 1080P - HDMI Matrix - All Products - AVI Shop, Houston, TX
8 x 9 4K HDMI Matrix Switch with Scaler - VM6809H, ATEN Video Matrix Switches | ATEN Corporate Headquarters
Bitvisus HD Video Switcher 9 Screen Rotatable 3X3 4K HDMI Video Wall Controller - China 3X3 Video Wall Controller, HDMI Video Wall Controllers | Made-in-China.com