Modern Industrial@vickylai I have a device which I love that has a foldable plug, USB charging ports (add your own cable), has a built-in power bank, and is black. As a bonus, it is also a wireless router, so you can set the hotel wired/wifi network to the device, then all of your stuff connects to the device (only have to configure once).
It's only 22W, though, and only works on 120V.
if you're interested, you can checkout the TripMate Elite.
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