Thunderbolt 3 unveiled by Intel is the fastest, most flexible connection to any dock, display, or peripheral device.
Thunderbolt 3 can transfer data with speed to 40Gbps. Which 4 times than data transfer speed of USB 3.1 (10Gbps).
Intel created the Thunderbolt 3 hardware interface, which was unveiled in 2015. Thunderbolt 3 ports look exactly the same as USB-C ports.
USB-C device is compatible with a Thunderbolt 3 host connection, but a Thunderbolt 3 device is not compatible with a USB-C host connection
First apple device comes with thunderbolt 3 is Apple's 2016 MacBook Pro.
Thunderbolt 3 supports up to 100W system charging and 15W to bus-powered devices.
It also supports two 4K displays
daisy chaining up to six devices.