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If there's no lightning bolt marking, it's just a charge & USB 2.0 cable, not thunderbolt. Genuine Apple Thunderbolt cables are marked, and the one you got with
by djrogers 5y ago
If there's no lightning bolt marking, it's just a charge & USB 2.0 cable, not thunderbolt. Genuine Apple Thunderbolt cables are marked, and the one you got with your MacBook for charging isn't one.