G Drive with Thunderbolt â A high performance storage solution featuring ultra fast Thunderbolt and USB 3.0 interfaces in an all aluminum enclosure. G Drive is perfect for storage intensive applications like audio/video editing or digital photography. Available in storage capacities up to 10TB, G Drive is plug and play on Mac, and easily reformatted for Windows. | As used for storage capacity, one Gigabyte (GB) = one billion bytes and one terabyte (TB) = one trillion bytes. Total accessible capacity varies depending on operating environment.