Intel has announced the Thunderbolt 4 protocol and new Thunderbolt 4 controllers, which build on the capabilities of Thunderbolt 3 and also form the basis for the USB4 spec. Thunderbolt 4 offers the same throughput as Thunderbolt 3 along with additional platform and security features while also expanding the Thunderbolt dock ecosystem. Thunderbolt 4 will be compatible all existing USB Type-C and Thunderbolt 3 standards and will be first seen in Tiger Lake-powered laptops later this year.
Thunderbolt 5 Revealed By Intel – 12GB/s Bandwidth Ready! – NAS Compares
What is Thunderbolt 4? All you need to know about the next-gen high-speed peripheral interface
Thunderbolt (interface) - Wikipedia
3ft USB4 Type-C Thunderbolt 3 (40Gbps, 100W, PD, 8K) Braided Cable
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Thunderbolt 5', a communication standard that allows data transmission at 120Gbps, is introduced, and supports video output and power supply with USB Type-C connector - GIGAZINE
Thunderbolt 5 Revealed By Intel – 12GB/s Bandwidth Ready! – NAS Compares
What Is Thunderbolt?
Thunderbolt (interface) - Wikipedia
The key features are support for USB4 protocol and data rates, a minimum bandwidth requirement of 32 Gbit/s for PCIe link, support for dual 4K displays (DisplayPort 1.4) and Intel VT-d-based direct memory access protection to prevent physical DMA attacks.
3ft USB4 Type-C Thunderbolt 3 (40Gbps, 100w, PD, 8K) Braided Cable
Plugable launches 16-in-1 Thunderbolt 4 Quad Dock with 100W charging, 2.5Gb Ethernet, and lots of USB-A - 9to5Mac