Not All USB-C Cables Are Equal: 3 Common Myths
NTechnical team · NovaCartAugust 15, 20261 min readUpdated: September 11, 2026
Why can a cheap cable charge your expensive phone slowly?
A USB-C cable isn't just a wire; good connectors contain an identity chip (e-marker) that tells the charger the maximum safe power.
Myth #1: every cable passes 100W
A cable without an e-marker chip caps out at 60W (3A). For charging a laptop, always buy a 5A-rated cable.
Look for '5A' or '100W' printed on the packaging.