More news on Thunderbolt 4 emerges

@ 2020/07/10
Should be around this year

Chipzilla has revealed more about Thunderbolt 4 - its cable connectivity product - and is telling anyone who will listen that it can docks with up to four Thunderbolt ports and universal cables up to two meters in length.

Intel’s upcoming mobile PC processors, code-named “Tiger Lake,” will be the first to integrate Thunderbolt 4. Intel also announced the Thunderbolt 4 controller 8000 series, compatible with the hundreds of millions of Thunderbolt 3 PCs and accessories already available. Thunderbolt 4 developer kits and certification testing are now available.

Thunderbolt 4 builds on Thunderbolt 3 and always delivers 40 Gbps speeds and data, video and power over a single connection. It is the most comprehensive Thunderbolt specification yet, Intel claims, with compliance across the broadest set of industry-standard specifications – including USB4, DisplayPort and PCI Express (PCIe) – and is fully compatible with prior generations of Thunderbolt and USB products. Thunderbolt 4 certification requirements include:

Double the minimum video and data requirements of Thunderbolt 3.
Video: Support for two 4K displays or one 8K display.
Data: PCIe at 32 Gbps for storage speeds up to 3,000 MBps.
Support for docks with up to four Thunderbolt 4 ports.
PC charging on at least one computer port2.
Wake your computer from sleep by touching the keyboard or mouse when connected to a Thunderbolt dock.
Required Intel VT-d-based direct memory access (DMA) protection that helps prevent physical DMA attacks. (Read more in the
Thunderbolt Security Brief.)

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