SplashID Key Safe is a USB drive with 4 GB of storage space, but it is so much more. A portable version of SplashID comes preinstalled for both Windows and Mac OS. Just plug the key into the USB slot of any computer, enter your password, and SplashID will launch with your data - wherever you may be. Pull the key out, and not a trace of SplashID nor any of your data remains on the computer.