Does anyone have any experience with connecting the new Ing clock, which comes with a USB cable and port, to a PC? Do you think someone has already used this feature? Or do you think that the USB port is completely useless?

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“Discussion is an exchange of knowledge; argument an exchange of ignorance.” ― Robert Quillen

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North Lecale

Is that just for powering the clock?

In that case, the PC is irrelevant. You can get plug in AC to DC-USB connector devices and those are what you should be using to charge devices that charge by USB. It's only devices that are used with the computer that should be being powered by the computer.