4GB Metal Key USB 2.0 Flash Drive Yellow Macintosh Mac OS 9.0 and Mac OS X - No software required Put it on your desk, book, TV, or pencil box, a mimi and super decoration Reading Speed: 30 MB/s. Writing Speed: 10MB/s Size: 2.24" x 0.94" x 0.12" Cool design and easy to use, Plug and Play