Patriot (Direct) Axle 4 GB Flash Drive PSF4GAUSB Hi Speed USB 2.0 Compatible (backwards compatible to USB 1.1) Easy plug and play functionality up to 20MB/s Read Compatible with Windows 7, Windows Vista, Windows XP, Windows 2000, Windows ME, Linux 2.4 and later, Mac OS9, X and later Portable and light weight (21.5 grams)