Intel announces Thunderbolt 4 overview. Corresponding products will be available within the year-Engadget Japan

Thunderbolt 4 will be compatible with USB 4 and will provide higher level functionality. In terms of security, use DMA in PCIe transferThunderspyIntel Directed I/O (VT-d) is a mandatory specification to prevent attacks.

So what about PCs equipped with AMD or Arm CPUs other than Intel CPUs, Intel says that these CPUs can also be used because they have a memory management unit (IOMMU) to use DMA. .. However, it is necessary for the OS to support this.

Intel will implement the CPU (Tiger Lake) Thunderbolt 4 that will appear in 2020, and will also ship a Thunderbolt 4 controller to manufacturers. In addition, a PC that is compliant with the modern PC specifications "Project Athena" promoted by Intel will be announced later this year.

(embed)https://www.youtube.com/watch?v=l_mBBE4NIOE(/embed)

source:Intel