4x2 HDMI2.0 18Gbps Matrix Switcher w/ Scaler, SPDIF, Analog & Web-GUI | A-NeuVideo, Inc.
HDMI splitter vs. HDMI switch: They actually serve opposite purposes - CNET
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
4x2 HDMI Matrix Switcher w/Scaling, Video Wall, Apps & Separate Audio, WolfPack
Video Matrix Switch Splitter, 4x2 HDMI, Audio, 4K/60Hz | Eaton
4x2 HDMI Matrix Video Switch 4K 60hz HDCP with Audio TESmart