Thunderbolt

Thunderbolt is an I/O technology developed by Intel in collaboration with Apple Inc. It first introduced by Apple in its 2011 line of MacBook Pros and became the official replacement for FireWire and was the standard above USB until USB4.

Versions

 * Thunderbolt 1 can reach transfer rates of up to 10Gbps through an interface that looks like and is backwards compatible with Mini DisplayPort. Thunderbolt also can deliver Gigabit Ethernet through an adapter.
 * Thunderbolt 2 uses the same Mini DisplayPort connector as Thunderbolt 1, but can reach transfer rates of up to 20Gbps.
 * Thunderbolt 3 uses the USB-C form factor and can reach transfer rates of up to 40Gbps. USB4 uses the same form factor and is basically the same as a USB-C port that supports Thunderbolt 3 signals.
 * Thunderbolt 4 uses the same USB-C form factor as Thunderbolt 3, but specifies a minimum bandwidth of 32Gbps for PCIe link, support for dual 4K displays, and protection against attacks.