Do not buy this key if you are looking for performance. The version tested is 64GB and writing the key tops out around 17MB / s (yes, USB 3 ...) read what is already better between 70 and 100 mb / s. Otherwise the design is nice and tiny key to put in the key door. It's mostly why I achetee. See the solidity of the term. Note the 5-year warranty. A good buy at 30 euros but not at the current price (between 55 and 60 euros).