This will definitely work on your Xbox 1! I'm currently using this hard drive for my Xbox 1 and it works. As for the outlet, you might want to use a converter/adapter to have it plugged in.
See if this will work for you?
http://www.bestbuy.com/site/insignia-travel-converter-adapter-black/5019291.p?id=1219219751721&skuId=5019291