Password protection and Encryption of drives

I am a brand new user of Dopus. Have evaluated for 30 days and bought. I request a feature to easily encrypt and password protect a drive like usb drive or Sd card.

DOpus offers some encryption options for compressed folders. However If you want to encrypt the whole drive check out VeraCrypt or you could try windows BitLocker. For good strong encryption you want a dedicated tool preferably one that is open source.