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WHY THUNDERBOLT 4 AND 5 CABLES COST SO MUCH

INDUSTRY DESK1 MIN READ
TUE, JUN 23, 2026

■ AI-SUMMARIZED FROM 1 SOURCE ▸ TIMELINE

Thunderbolt 4 and 5 cables command premium prices despite their USB-C appearance. The difference lies in sophisticated internal engineering required to handle extreme data speeds and power delivery.

Thunderbolt cables contain significantly more complex circuitry than standard USB-C alternatives. These cables must support data transfer speeds up to 120 Gbps (Thunderbolt 5) while simultaneously managing high-power charging and video output across multiple protocols. The cables include embedded controllers and sophisticated signal conditioning hardware to maintain data integrity at extreme speeds. They also require stricter manufacturing tolerances and quality control standards compared to standard USB cables. Thunderbolt certification demands extensive testing and compliance verification, adding manufacturing costs. The licensing fees Intel charges for Thunderbolt technology further increase the final price. A certified Thunderbolt 4 cable typically costs $30-40, while Thunderbolt 5 cables run higher as the technology is newer. Generic USB-C alternatives cost a fraction of this, but lack the engineering necessary for Thunderbolt performance specifications. Manufacturers must balance strict Intel standards with production costs, making cheap Thunderbolt cables rare and often unreliable.

■ SOURCES

Engadget

■ SUMMARY WRITTEN BY AI FROM THE LINKS ABOVE

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