This by definition would be allowed
it is a single variable AC PLUG
with multiple USB outlets.
ONLY 1 AC device can be plugged into this adapter at any given time
so this would not be classified as a Multi plug device
We will be sailing Saturday and have this along with 2 other devices which we will test.
In the past we like to plug into the Euro outlet to utilize
I don’t come on here much, but will try and follow up and let y’all’s know how we get on