ATEN VS1814T 4-port Cat5 HD Digital Video/Audio Distribution Unit
StarTech.com 4-Port HDMI Splitter, 4K 60Hz, 1 In 4 Out 4K HDMI Splitter, 1x4 HDMI 2.0 Display/Output - HDMI-SPLITTER-44K60S - Audio & Video Cables - CDW.com
ATEN 4-Port HDMI Over Single Cat 5 Splitter-TAA Compliant - 1 Input Device - 330 ft Range - 4 x Network (RJ-45) - 1 x HDMI In - 1 x HDMI Out - Serial Port - 4K - 4096 x 2160 - Rack-mountable UNIT