Brand new and genuine item in original manufacturer's packing
Compatible with USB 3.1 Gen2 (10Gbps), backwards compatible
Date Transfer Speed: Up to 540 MB/sec.
USB: USB 3.1
AES 256-bit hardware encryption
Security: Samsumg Portable SSD Software requires Windows 7, Mac OS X 10.9 (Mavericks), Android 4.4 (KitKat), or higher. Older versions of the Windows, Mac and Android operating systems may not be supported.
Dimensions: 2.91" x 2.26" x 0.41"
Three year warranty
The "Speed" is specified by manufacturer by using its own optimal testing environment. (However, actual performance will be varied with different environment of individual device.)