Description 1TB The ruggedized SanDisk Extreme Portable SSD delivers high-speed transfers with up to 550MB/s read speeds This makes it perfect for saving and editing hi-res photos and videos With an IP55 rating, it also stands up to rain, splashes, spills and dust Password protection uses 128-bit AES encryption and is supported by Windows 10, Windows 8.1, Windows 7 and macOS High Sierra, Sierra or Mac OS X El Capitan Product description High-speed transfers with up to 550MB/s read speeds let you move hi-res photos and videos fast (Based on internal testing; performance may be lower depending on drive capaci model : SanDisk 1TB SDSSDE60-1T00-G25 Extreme Portable External SSD USB-C USB 3.1 tag : External SSD