APPLE THUNDERBOLT CABLE
With Thunderbolt, you get superfast data transfer speeds and huge expansion capabilities. It features two 10-Gbps data channels per port, which means data transfer is up to twice as fast as USB 3 and up to 12 times faster than FireWire 800.
Use the Apple Thunderbolt Cable to connect your Thunderbolt-equipped peripherals to your iMac, Mac mini, MacBook Pro, or MacBook Air. The cable can also be used for target disk mode between two Mac computers that support Thunderbolt, or to use an iMac as a display for a MacBook Pro equipped with Thunderbolt.