Thunderbolt™ Cable Thunderbolt™ is a state-of-the-art data transfer technology that supports high-performance data devices (RAID, 4K content, etc.) through a single port. Compatible with Thunderbolt 2, Perfect for connecting Ultra High-Resolution Displays, IOGEAR's Thunderbolt Cables can also daisy chain up to six devices for simplified connectivity. Thunderbolt 2 users can take advantage of transfer speeds of up to 20Gbps, with support for DisplayPort 1.2 displays. Thunderbolt 2 uses the same cables, connectors, and works with existing Thunderbolt devices.What is Thunderbolt™ Technology? Thunderbolt technology offers the fastest data transfer for Mac or PC systems, featuring a bi-directional speed up to 10Gbps- twice the speed of USB 3.0. Offering the ability to daisy chain multiple devices, Thunderbolt cables provide a simple solution for connecting hardware such as monitors, hard drives and other high-speed, high-bandwidth devices through one port.