So I am very happy I read a review about the Carnival Inspiration rooms only having 1 power outlet. Based off what I read I purchased a RAVPower 6 Port USB charger from Amazon. this worked out great! Helped us charge all of our phones and keep them charged to take awesome photos of our cruise. If you are in need of a power supply I would recommend it. The one thing that I wish I had with this was the adapter for the 220v that it says it comes with. You can see the spot in the box where it cane come with one, but it never came with one. Oh well its still worth it, just need to get that adapter for a trip to Europe.