An HDMI splitter takes a signal from one source (like your gaming console, computer, AppleTV, etc.) and sends it to multiple destinations (like TVs or monitors). It’s what you use if you want to, say, play Call of Duty with your roommate on different TVs. Splitters are labeled with two numbers. The first is always a one, which reflects the number of inputs. The second is the number of outputs, and it typically ranges from two to eight. So just decide how many outputs you want, and don’t make the mistake a lot of people do and buy an HDMI switcher, which does just the opposite — it connects multiple sources (like your cable box, Roku, and PS4) to a single destination (usually your TV). Also, don’t forget the HDMI cables. They’re not included.
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