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Why do Thunderbolt 4 add on cards require motherboards to have manufacturer specific Thunderbolt headers? : r/hardware
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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
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