Move Files Quickly with Faster Transfer Speeds; With transfer speeds of up to 100MB/s the SanDisk Ultra USB 3.0 Flash Drive reduces the time you'll spend waiting for files to move from the flash drive to your computer. Enabled for USB 3.0 ports the drive lets you transfer store and share large files up to four times faster than USB 2.0 drives. Stylish Portable Design; With its sleek black design the SanDisk Ultra USB 3.0 Flash Drive is as stylish as it is practical. This compact and portable drive can easily travel with you in a pocket or handbag. Operating temperature: 32'F~113'F (0'C~45'C); Storage temperature: 50'F~158'F (-10'C~70'C); Compatibility: USB 3.0 and USB 2.0; SanDisk SecureAccess Software Keeps Files Private; The SanDisk Ultra USB 3.0 Flash Drive includes SanDisk SecureAccess software which lets you set up a password-protected private folder on your drive. Your files will be secured with 128-bit AES encryption to help keep them confidential even when sharing the drive with others. OS supported: Windows XP Windows Vista Windows 7 Windows 8 and Mac OS X v10.5+ (Mac software requires download see SanDisk website for details); Red Indicator