Thunderbolt 3 uses Universal Serial Bus (USB) type C. The older versions of Apple products (Thunderbolt 1, and 2) use the Mini DisplayPort (MDP).
Thunderbolt is the brand name of a hardware interface developed by Intel (and collaboration of Apple) that allows the connection of external peripherals to a computer. Thunderbolt 1 and 2 use the same connector as Mini DisplayPort (MDP), whereas Thunderbolt 3 uses USB Type-C. It was initially developed and marketed under the name Light Peak, and first sold as part of a consumer product on February 24, 2011.
Thunderbolt combines PCI Express (PCIe) and DisplayPort (DP) …