G-Technology G-DRIVE Mobile GDRU3CWW10001ADBV3 - hard drive - 1 TB - USB 3.

Featuring a plug-and-play USB 3.0 port and transfer speeds up to 130MB/s[2], the G-DRIVE mobile drive offers portable storage in a stylish, aluminum design to complement your Mac computer. And with up to 4TB[1] of Mac storage, you're instantly ready to back up your favorite videos, photos, music and documents, wherever you go.