Small, fast, and on-the-go ready, Seagate® Expansion SSD offers sleek USB 3.0 backup for your Windows® or Mac® computer. Ultra light, it slips in your bag practically unnoticed. Beyond easy, it makes transferring files a simple matter of drag, drop, done. Enjoy space of up to 1 TB for storing loads of photos, and rapid performance for streaming stored videos directly to your computer. - Super compact, light, and small enough to fit in your front pocket without weighing it down - Easily drag and drop photos and videos to your drive. Even streamvideos straight from the drive - Take advantage of SSD durability and transfer speeds up to 400 MB/s - Works with Windows and Mac without the need to reformat. - Reformatting is needed for use with Time Machine - Enjoy long-term peace of mind with the included 3-year limited warranty