Apple Thunderbolt Cable
Thunderbolt technology supports blazing-fast data transfer with two independent channels of 10Gbit/s each. Use the Apple Thunderbolt cable to connect your Thunderbolt-equipped peripherals to your new iMac or new MacBook Pro.

Apple's Thunderbolt cable can also be used for Target Disk Mode between two Macs that support Thunderbolt, or to use a new iMac as a display for a MacBook Pro equipped with Thunderbolt.