An USB Flash Drive is a USB memory, small, mobile and handy device to store data or exchange data between PCs. Your host computer automatically detects it and you can easily use it as an additional drive. No adapters or drivers are needed for the latest Operating Systems, like Windows 2000 and higher, Mac OS 9.0 and higher and Linux 2.4.0. No batteries or separate power supplies are needed. Capacities up to 4Gb can be stored.