![Why do Thunderbolt 4 add on cards require motherboards to have manufacturer specific Thunderbolt headers? : r/hardware Why do Thunderbolt 4 add on cards require motherboards to have manufacturer specific Thunderbolt headers? : r/hardware](https://external-preview.redd.it/W1fMc8EOvyGSPvXpdCxue0OOgM4Y8-Ws3q3oZyb9ld8.jpg?auto=webp&s=60a9c9e4065ffad8775500f561bfc523fb6c2287)
Why do Thunderbolt 4 add on cards require motherboards to have manufacturer specific Thunderbolt headers? : r/hardware
![ASUS ThunderboltEX 4 with Intel Thunderbolt 4 JHL 8540 Controller, 2 USB Type-C ports, up to 40Gb/s Bi-directional Bandwidth and Incorporates DisplayPort 1.4 support, up to 100W Quick Charge - Newegg.com ASUS ThunderboltEX 4 with Intel Thunderbolt 4 JHL 8540 Controller, 2 USB Type-C ports, up to 40Gb/s Bi-directional Bandwidth and Incorporates DisplayPort 1.4 support, up to 100W Quick Charge - Newegg.com](https://cdn.cs.1worldsync.com/syndication/mediaserverredirect/6ccd214cafbb211acf00d7c233fc17dd/original.jpg)
ASUS ThunderboltEX 4 with Intel Thunderbolt 4 JHL 8540 Controller, 2 USB Type-C ports, up to 40Gb/s Bi-directional Bandwidth and Incorporates DisplayPort 1.4 support, up to 100W Quick Charge - Newegg.com
![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: 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](https://m.media-amazon.com/images/I/71P+MmVXLpL.jpg)
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
![ASUS ThunderboltEX 4 with Intel Thunderbolt 4 JHL 8540 Controller, 2 USB Type-C ports, up to 40Gb/s Bi-directional Bandwidth and Incorporates DisplayPort 1.4 support, up to 100W Quick Charge - Newegg.com ASUS ThunderboltEX 4 with Intel Thunderbolt 4 JHL 8540 Controller, 2 USB Type-C ports, up to 40Gb/s Bi-directional Bandwidth and Incorporates DisplayPort 1.4 support, up to 100W Quick Charge - Newegg.com](https://c1.neweggimages.com/ProductImage/15-293-048-V80.jpg)
ASUS ThunderboltEX 4 with Intel Thunderbolt 4 JHL 8540 Controller, 2 USB Type-C ports, up to 40Gb/s Bi-directional Bandwidth and Incorporates DisplayPort 1.4 support, up to 100W Quick Charge - Newegg.com
![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: 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](https://images-na.ssl-images-amazon.com/images/I/61s8hBneOBL._AC_UL750_SR750,750_.jpg)