Ahoy, Christi!
Welcome to the Disney Parks Moms Panel! I'm ridiculously excited for your upcoming voyage sailing through the Mediterranean! My favorite Disney Cruises are those that last longer than a week. You're going to love visiting each port of call throughout the Mediterranean, experiencing all the magic of Disney while onboard the ship.
Guests sailing aboard Disney Cruise Line from the U.S. and Canada do not need to bring
electrical converters. All stateroom outlets are 110 volts with the exception of the one outlet intended for use with a hair dryer that is 220 volts. Your devices should happily work and charge plugged directly into the outlets onboard! You asked a fantastic question about USB plugs. It's my recollection that there currently aren't USB charging ports found inside the staterooms, but what I recommend doing is bringing your own four-port USB charger to plug into an outlet to use! Extension cords and power strips are two
prohibited items onboard, but you may bring a four-port USB charger to keep your electronics fully charged throughout the voyage.
I know your cruise is just around the corner, but if you have any other questions before embarkation day, please sail back and visit us again!
Beth