Easily connect your Thunderbolt-equipped Mac to a FireWire device with the Apple Thunderbolt to FireWire Adapter. Small and compact, it connects to the Thunderbolt port on your Mac computer, giving you a FireWire 800 port that supplies up to 7W for bus-powered peripherals like hard drives and audio devices.
Apple Thunderbolt to FireWire Adapter with built-in Thunderbolt cable
OS X v10.7.4 or later
Thunderbolt-equipped Mac computer