StarTech.com 4 Port 1 Input 4 Output HDMI Splitter - up to 4K

The ST124HD4K 4-port 4K HDMI splitter lets you share four HDMI displays or projectors with an HDMI-enabled audio / video source devices, such as a computer, Blu-ray player or cable TV set-top box.

StarTech.com 2x2 HDMI Video Wall Controller, 4K 60Hz HDMI 2.0 Video Input to 4x 1080p Output, Video Wall Processor for Multi Screen Display, Video Wall Splitter, RS232/Ethernet Control

4 Port High Speed HDMI Video Splitter - HDMI® Splitters, Audio-Video Products

ST128HD20 StarTech.com, StarTech.com 9 Port 1 Input 8 Output HDMI Splitter - up to 4K, 186-1980

4K HDMI Splitter - 4-Port - 4K 60Hz - HDMI® Splitters, Audio-Video Products

StarTech.com 4-Port HDMI Splitter - 60Hz, HDMI, 4x HDMI, 3840 x 2160 pixels, Black, 4K Ultra HD, 60 Hz - Hunt Office Ireland

NewLink 4 Port 1 Input 4 Output HDMI Splitter 4K x 2K

ST128HD20 StarTech.com, StarTech.com 9 Port 1 Input 8 Output HDMI Splitter - up to 4K, 186-1980

StarTech.com 4-Port 8K HDMI Switch, HDMI 2.1 Switcher 4K 120Hz HDR10+, 8K 60Hz UHD, HDMI Switch 4 In 1 Out, Auto/Manual - 4PORT-8K-HDMI-SWITCH - Audio & Video Cables

HDMI Splitter 1 in 4 Out -4K Hdmi Splitter 1x4 Ports v1.4 Powered 4K/2K Full Ultra HD 1080p US Adapter 3D Support