McAfee introduced an encrypted USB storage. McAfee Encrypted USB (formerly SafeBoot® for USB)

McAfee Encrypted USB drives protect your company's data through powerful encryption technology and strong access controls that ensure that all information stored on them is safe and secure (readable only by authorized personnel).

Protect data with powerful encryption, Control data access with strong authentication, Fast transfer speeds and "on-the-fly" encryption are some features this have  Read more from McAfee or Datasheet Here

But I cant see any Linux or Unix Operating systems in the system requirement page.