USB 3.0 and USB 2.0 Compatibility, Worry-free one-year warranty; Easily store and access 500GB of content on the go, the inside 500GB HDD are from Toshiba, Seagate, WD, Samsung, etc brand Ready to use without external power supply or software installation Lightweight, compact design so that you can bring loads of files wherever you go. The contents of box: Manual, Warranty Card, USB 3.0 cable, 500GB Portable External Hard Drive 1