Before revision: host controller chip to achieve both USB4 and Thunderbolt™ 4 certifications Thunderbolt 5 On September 12, 2023 Intel previewed Thunderbolt 5 (codenamed Barlow Ridge), aligned to the USB Implementers Forum's (USB-IF) USB4 2.0 specification.
After revision: Thunderbolt 5 On September 12, 2023 Intel previewed Thunderbolt 5 (codenamed Barlow Ridge), aligned to the USB Implementers Forum's (USB-IF) USB4 2.0 specification.