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How to Connect 3 Monitors to a Computer
You can use an HDMI splitter to connect three monitors ... Then the first monitor connects to the second and the second to ...
Business Insider India5y
How to connect your Mac computer to a TV, and use a TV as a mirrored screen or second monitor
Note, however, that TVs don't always make great second monitors ... note you may need a cable that converts to HDMI if using the Thunderbolt port. Connect the computer's output to a video input ...