Intel Builds On USB4 v2 for 120 Gbps Next Generation Thunderbolt
Amazon.com: ASUS ThunderboltEX 4 with Intel® Thunderbolt™ 4 JHL 8540 Controller, 2 USB Type-C Ports, up to 40Gb/s bi-Directional Bandwidth, DisplayPort 1.4 Support, up to 100W Quick Charge. : Electronics
Amazon.com: Cable Matters [Intel Certified] 40Gbps Active Thunderbolt 4 Cable 6.6 ft with 100W Charging and 8K Video - Fully Compatible with USB C/ USB-C, USB 4 / USB4, and Thunderbolt 3 : Electronics
Intel details its USB4-compliant Thunderbolt 4 standard
Thunderbolt 4: Same 40Gbps speed but Intel ups requirements for certification | ZDNET
For PC Intel Certified Thunderbolt 4 Cable 40Gbps 100W Gen 2 USB 4 Type C Cable | eBay