Vivolink HDMI matrix switch and extractor (4 in - 2 out)
4x2 HDMI Matrix Switcher - Lindy rent
Lindy 4x2 HDMI Switch Black | Techinn
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