Use the supplied USB C to C or USB A to C cable to connect the EW7077 to the USBC or A port of your PC/Laptop.
In some cases it is possible the USB port of your PC/Laptop does not supply enough
power to power the EW7077, in this case use the additional USB power cable to
provide additional power to the EW7077. Or you can decide to purchase and use the
optional AC1505 power supply.