The white Apple Thunderbolt Cable (6.6') 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. Thunderbolt technology supports fast data transfers with two independent channels of 10 Gb/s each. And Thunderbolt 2 technology can bond the two channels for a super fast 20 Gb/s. Use this cable to connect Thunderbolt-enabled devices to the Thunderbolt or Thunderbolt 2 port on your Mac. New cable, taken out of box to try. Wrong cable for us. This NOT a charging cable.