500GB USBC 3.1 Extreme Portable SSD The rugged 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.Please note this item is non-returnable, see our returns policy for more information.