[HANDS-ON] One of the trend in corporate data security; Encrypted USB thumbdrive.
I am no IT security expert but this product page still makes an excellent read. Kingston DataTraveler Vault Privacy 3.0 – Link
With the DataTraveler, when you plug it into a computer, you have to run a program that allows you to enter the password for access to the content. As simple as it sounds, the real value is of course the protection of your data. Whatever it is that will justify a rather expensive thumbdrive. Apparently this particular Kingston is not available for sale in Singapore retail stores for some reasons unknown to me.
Google says if I have to buy one from Amazon, a 4GB version may cost you over S$100.
