Sandisk 64GB Ultra USB 3.0 Flash Drive. SDCZ48064GU46

64GB capacity Up to 100 MB/s Read speed Up to 100MB/s Transfer speed USB 3.0 Stylish, portable design SanDisk SecureAccess software Available capacities: 64GB Performance/speed: Transfer speeds up to 100MB/s, write speeds lower Operating temperature: 32° – 113° F (0° – 45° C) Storage temperature: 50° – 158° F (-10° – 70° C) Compatibility: USB 3.0 (backwards compatible with USB 2.0)