Documented cables have different transfer limits
Apple
Apple contrasts a 480 Mbps USB-C Charge Cable with a Thunderbolt 3 cable supporting USB transfers up to 10 Gbps and Thunderbolt transfers up to 40 Gbps.
Based on: Apple
Verdict
False
Verification confidenceHigh
Explanation
No. A USB-C connector does not mean every cable supports the same maximum data-transfer speed. Cables with matching connectors can have different capabilities.
Apple documents a USB-C Charge Cable limited to 480 Mbps, while its Thunderbolt 3 cable supports USB transfers up to 10 Gbps and Thunderbolt transfers up to 40 Gbps. Dell separately explains that USB-C is a connector and cable specification, not a single data protocol.
A cable's rated maximum is not a guaranteed transfer speed. The connected devices must support the relevant standard too. Charging capability and data performance are separate specifications, so the connector shape alone cannot establish either.
Key takeaway
Matching USB-C connectors do not guarantee matching data speeds. Check the cable's data rating and the standards supported by both devices.
Evidence
Contradicts the claim
USB-C does not specify one data protocol
Dell
Dell explains that USB-C is a connector and cable specification that can use different USB protocols. Transfer speed also depends on the connected devices.
Based on: Dell
Cable labels distinguish power and data capabilities
USB Implementers Forum
USB-IF provides distinct cable markings for power ratings and data performance, including a separate category for USB 2.0 Type-C cables.
Based on: USB Implementers Forum
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