Store and transfer images, music, documents and more up to 10x faster than USB 2.0! The durable, light-weight design of the PNY Attaché 4 USB 3.1 Flash Drive provides a convenient way to store and share easily your documents, music and photos.Features & Benefits USB 3.1 Flash Drive USB 2.0 and 1.1 compatible Size : 53,8 x 19,5 x 9,5mm Write Speed: up to 20MB/s (on 3.0 port) Read Speed: up to 80MB/s (on 3.0 port) Warranty : 2 Years Reliability Operating temperature: 0°C to 60°C Storage temperature: -20°C to 85°C Storage Humidity: 95% Max non condensing Data retention: 10 years Write/erase cycles: 10,000 minimum