It's best used for transferring games you aren't currently interested in but may be at some point down the road, and a quick 2-6 minute transfer is way better than re-downloading each time.

Don't waste your time like I

one first one I got was defective lost connection after 24 hr and keep dropping replacement works great load time are improved and plenty of storage space only down fall is it doesn't Wake up until you first access it so initial load is little

Very excited to hook it up to my xbox one and have lots of free space and hopefully fast load times.