The durable, light-weight design of the Memorex USB 3.1 Flash Drive is the ultimate mobile storage solutionStore and transfer large files faster than ever with USB 3.1 Gen 1 technologyTransfer speeds approximately 10 times faster than standard Memorex USB 2.0 Flash DrivesThe Memorex 64GB USB 3.1 Flash Drive can hold approximately 28,500 8MP photos or 11,830 songs***Compatible with most PC and Mac laptop and desktop computers with USB 3.1 Gen 1 port. Backwards compatible with USB 3.0 and USB 2.0 host devices.