This could come in handy.

Late Tuesday, Apple released its Thunderbolt Firmware Update 1.1, a 468 kilobyte download for the mid-2012 MacBook Pros that offers the following fixes and changes:

- Addresses an issue with MacBook Pro (mid-2012) and some Thunderbolt cables that may prevent bus-powered Thunderbolt devices from functioning properly.

The firmware update can be downloaded directly or located, snagged and installed via Mac OS X’s Software Update feature and requires a mid-2012 MacBook Pro, running Mac OS X 10.7.4 or later to install and run.

If you’ve tried the update and noticed any changes, please let us know what you make of it in the comments.