Actiontec USB/Ethernet DSL Modem User Manual
7.Another window appears. Plug the rectangular end of the Purple (USB) Cable into a USB port on the front or back of the computer, then click Next.
☞Note: A USB port is shaped like a thin rectangle about 1/4 inch by 1/2 inch, and may be vertically or horizontally oriented.
The Modem is connected to a computer via USB.
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