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 the software license on your attached iLok. You can pack up to 1,500 licenses on the 3rd Generation iLok – that's three times as many as the previous generation. And at 1.5′′ x 0.5′′, it's the smallest iLok ever. It's super durable though, thanks to its split- and crack-proof aluminum frame. Would-be thieves will have a hard time stealing your iLok, as the 3rd Generation iLok's wider and stronger security loop accommodates most desktop security cables, and its etched serial number doesn't rub off without some serious effort. A stylish embossed logo makes counterfeiting extremely difficult, so you'll know that your iLok is the real deal. The 3rd Generation iLok comes complete with a glowing blue LED indicator.