Apple didn't make an official announcement, but thanks to our tipters, we are now bringing you the news. According to the official product page, the Mac Pro Security Lock Adapter uses compatible Kensington and similar third-party locks to keep the Mac Pro secure.
Basically, it locks the housing to the enclosure, preventing thieves from hacking the beastly internal components of the Mac Pro. The adapter is also easy to set-up because it doesn't require tools.
Supported Kensington locks include the MicroSaver Lock, MicroSaver DS Keyed Lock, Combination Laptop Lock (2011 model), Portable Combination Laptop Lock, and WordLock Portable Combination Laptop Lock.
The Mac Pro Security Lock Adapter is now available at Apple's Online Store for $49.