Get on Amazon.com : http://www.amazon.com/gp/product/B00TKFEEAS?tag=clothingattes-20

Seagate Expansion 1TB Portable External Hard Drive USB 3.0 (STEA1000400)

Expands your Xbox One gaming experience Connect this drive to the Xbox One USB port to immediately add storage capacity to your console
Easy and simple to use - plug it in and go
Fast file transfers with USB 30
Compatible with USB 30 and USB 20
Powered by USB port