The green 128GB USB 3.0 DataTraveler I G4 Flash Drive from Kingston is a compact, portable flash memory storage device for your data. It has 128GB of data storage capacity for saving photos, documents, or other data. The DataTraveler has a read speed of 40 Mb/s and write speed of 10 Mb/s. Its USB 3.0 port is backward compatible with all USB devices. It is easy to use, requires no extra software, and is compatible with both Windows and Mac OS X operating systems. A cap protects the USB plug and your data. The drive is backed by a limited five-year warranty and free technical support.