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I am not sure but this is meant for updating monitor firmware
Sorry, there was a problem. Please try again later.Thank you for reaching us regarding LG Monitor. The primary purpose of the USB-B port on the LG 49GR85DC-B monitor is to turn the monitor into a USB hub, enabling it to provide additional USB connectivity and charging capabilities when connected to a PC or laptop. You can download its owner's manual through this link for more information: https://www.lg.com/us/support/product/lg-49GR85DC-B.AUS. ^Cris
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