As a part of the Xbox One fall update, using an external drive allows you to capture, store and edit Game DVR clips with ease.
The next Xbox One update is currently brewing and while still some time away from a public release, we're already getting a sense for the major features hitting the console. Although the biggest focus of the fall update focuses on redesigning the Xbox One user interface (UI) with fluidity and speed in mind, a range of new additions is also being introduced across console's entire feature set.
Full story from the WindowsCentral blog...