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There are nine different editions to choose from, and the right one for you will depend on the size of the drive you want to use it with. The freeware edition is available for non-commercial and personal use only, and will work with storage capacities of up to 4 GB in size. However, there is also an unlimited edition available that will work with USB flash drives of any capacity currently available on the market today. You can compare the various editions by visiting http://kashu-sd.co.jp/en/edition.html.
Protect All or Part of the Drive
USB Flash Security is designed to offer a flexible and practical solution offering a wide range of uses for those with varying requirements. No matter which edition you choose, you can use it with USB flash drives of any capacity, since you don't need to encrypt and password-protect the entire drive. This is useful for a number of reasons. Most importantly, encrypting data makes it slower to access and read due to the fact that the data has to be decrypted every time you access it. While the software uses one of the fastest data encryption algorithms available, it is always useful to have certain types of files readily available on an unprotected part of the drive. For example, if you're storing any files that do not contain potentially sensitive information, you can keep them on the unprotected portion of the drive. All other data may be stored on the protected part.
The program works with any external USB drive or flash media, including memory cards and external hard drives. You can quickly and easily change the size of the unprotected area thanks to the simple and user-friendly interface and intuitive set of controls
You can learn more about USB Flash Security at the website above. There are multiple licenses available for both personal and group users, with the latter providing a wider range of advanced features including more powerful administrator functions, server authentication and more.