![]() USB can also be used to transmit power which is how a USB hub, USB mouse or other USB device lights up when it is plugged into a powered USB port. Physical distance is stated at 10ft maximum according to various text books however in the real world I have successfully used USB cables exceeding 25 ft without any problems. USB 3.0 transmits data at 400 megabytes per second. USB 2.0 transmits data at 60 megabytes per second. ![]() ![]() USB also called Universal Serial Bus presently comes in 2 versions. ![]()
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