The iLok is a special USB device that holds your licenses for iLok-enabled software. Software publishers use the iLok to provide secure protection for their software. When you run their iLok-enabled software, it looks for your software license on your attached iLok.
It’s portable – you can authorize your software anywhere it is installed. At home, work, or at a remote location, you can keep your software licenses with you, not on your computer.
It’s convenient and cross-platform – Store your Mac and Windows iLok-enabled software licenses all on a single iLok. An iLok can hold over 500 licenses (2nd Generation).