Data encryption happens automatically, and in a transparent way: files are encrypted on the fly when they are written to the encrypted disk, and decrypted when read from the virtual encrypted disk.
The Dekart SIM card reader is available in an elegant, thin but solid case made of high quality plastic that reliably fixes the card and guarantees usability in the same time.
Security software like Private Disk features many other tools like compressed backups, automatic key backups etc. to make your data more protected. Compressed backups will also save your disc space.