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
4-Port Mini DisplayPort to HDMI Splitter, MST Hub, 4K 60Hz UHD | Eaton
4x1 HDMI KVM Switch 4 Port Ultra HD 4K@30Hz, USB 2.0, HDCP 1.2, No Power Adapter Required, Support Wireless Input Device and Hotkey Switch, with 4 HDMI and USB Cables - Buy
Presentation Switcher, 4x Video Inputs to HDMI 4K/60 Display | Eaton