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> There's no such thing as a "1.5A C-to-C cable"; all type-C cables are required to deliver at least 5A. 1.5 A is required to be supported by USB-C, while 3 A
by legulere 11y ago
> There's no such thing as a "1.5A C-to-C cable"; all type-C cables are required to deliver at least 5A.
1.5 A is required to be supported by USB-C, while 3 A is optional. Everything over it is covered by USB Power Delivery, which requires a marking of the cable which of the 5 profiles are supported.
- teraflop 11y agoAfter re-reading the spec, I think both your comment and mine are slightly wrong. Connectors must be capable of handling 5A; cables are required to support at least 3A. (See sections 3.1.2 and 3.7.7.4.) You're correct that higher power requires USB-PD.