USB4 Version 2.0 to Offer 80Gb/s Transfer Speeds - MacRumors

USB4 Version 2.0 is in the works and when launched, it will allow for double the speeds of the current USB4 specification with existing USB-C cables.

Does anyone expect PCIe 5.0+ slots on whatever replaces the 2019 Mac Pro?

Intel announces outline of 'next generation Thunderbolt' based on USB 4 Version 2.0, realizing maximum 80 Gbps bidirectionally and maximum 120 Gbps one way for external display - GIGAZINE

MacRumors: Apple News and Rumors - Page 253

Any thoughts about Thunderbolt 4?

Best USB4 Posts - Reddit

Mac Pro 2023 = Another Mac Pro 2013 crisis and failure., Page 21

USB 4 device to test/confirm transfer speeds? : r/UsbCHardware

USB4 Version 2.0 to Offer 80Gb/s Transfer Speeds, Page 8

Mac Pro 2023 = Another Mac Pro 2013 crisis and failure., Page 21

USB 4 Version 2 Doubles Transfer Speed to 80Gbps -- even 120Gbps if You Push It - CNET