The Apple Thunderbolt Cable lets you connect two Thunderbolt-equipped Mac computers in target disk mode, network two Mac computers with OS X Mavericks, or use your iMac as a display for a MacBook Pro or MacBook Air.
Length – 0.5 meters
Thunderbolt technology supports fast data transfers with two independent channels of 10Gb/s each. And Thunderbolt 2 technology can bond the two channels for a superfast 20Gb/s. This cable connects Thunderbolt-enabled devices to the Thunderbolt or Thunderbolt 2 port on your Mac.