Patriot Viper High Performance 64GB USB 3.1 Gen 1 Flash Drive (PV64GUSB) USB 3.1 Gen. 1 compliant (backwards compatible with USB 2.0 standards) Up to 385MB/s read speed Up to 40MB/s write speed Rugged rubber coated casing Capless swivel design for no hassle protection Compatible with legacy and latest versions of Windows, Mac OS, Android, and Linux