Tried several different connector and cable configurations, none of which solved the problem. It seemed to fit my Dell PC laptop quite well. But my MacBook Air flickered too much to be usable. Both were connected to an Acer 4K monitor and held steady at 60Hz as long as the connection could be maintained. I like the design and the small remote control. Too bad it didn't really work. We will come back for a refund.
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NEWCARE HDMI KVM Switch: 4K@60Hz, 2x1 HDMI2.0 Ports + 3X USB KVM Ports - Share 2 Computers on UHD Monitor, with Wireless Keyboard and Mouse Support - USB Disk, Printer, USB Camera Compatible
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