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The only required port is HDMI. USB is used to provide additional power (or just power since HDMI can't always do it on older TVs). You can always power Roku by connecting its USB port to AC outlet using a standard USB charger (with micro-USB tip).
Sorry, there was a problem. Please try again later.Check your TV manual, or just look to see if there is an HDMI port on the back.
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