Capless Design: Take it with you everywhere, wherever you go, with Compact metallic Design of USB Fast Flash Drive. Super Speed: 10X faser than traditional USB 2.0, Sequential read up to 70MB/s and Write up to 30MB/s. Extremely thin design: It is very sleek and stylish with Dimension of 47mm x 15.8mm c 5.6mm Easy plug-and-play: It has a interface of USB 3.1 and compatibility with WIndow 7, 8, 10 and Mac OS X and later.Environmental Conditions: It can operate at temperature up to 0° to 60° C and Storage temperature -25°C to 85° C. Featuring a cap-less design with metal housing, the HP USB 3.1 Flash Drive x303w offers intelligent storage in a sleek and a stylish design. Store all of your documents, pictures, video clips, MP3 files and more. Take it with you everywhere, wherever you go. Specifications Storage Capacity 16GB/ 32GB/ 64GB Interface USB 3.1 USB Connector USB Type-A Read Performance 16GB: up to 70MB/s 32-128GB: up to 75MB/s Write Performance 16GB: up to 20MB/s 32-128GB: up to 30MB/s