Kramer VM-4H2 1:4 HDMI Distribution Amplifier VM-4H2 B&H Photo
Monoprice Blackbird 4K HDMI 2x4 Splitter and Switch - Monoprice.com
Amazon.com: OREI 4K 1x4 HDMI Splitter, - 1 Port to 4 HDMI Display Duplicate/Mirror - Powered Splitter Ver 1.4 Certified for Full HD 1080P High Resolution & 3D Support (One Input To
Amazon.com: FERRISA 4x2 HDMI Matrix Switch,4 in 2 Out Matrix HDMI Video Switcher Splitter +Optical & L/R Audio Output,Support Ultra HD 4K,3D 1080P,Audio EDID Extractor with IR Remote Control : Electronics
Elgato Cam Link Pro PCIe camera capture card, 4 HDMI inputs, 1080p60 Full HD, 4K30, Multiview, streaming, OBS, Zoom Black 10GAW9901 - Best Buy