Manufacturers 2 Year Warranty. USB 3.1 is fully backwards compatible with all USB 3.0 and USB 2.0 Ports. Superfast USB 3.1 with read speeds up to 80 MB/s and write speeds of up to 20 MB/s (on 3.0 port). Windows and Apple Mac compatible. Durable: 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. Product Dimensions : 53,8 x 19,5 x 9,5mm. Functional sliding capless design for ease of use, keeps your drive in better shape for longer. 7dayshop stock a competitive range of products : photo, computer, memory, inkjet, audio, video, battery, gifts ideas, gadgets and much more.