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This article compares 60W vs 240W charging cables for iPhone, explaining USB Power Delivery limits, MFi certification, E-Marker chip function, material science, charging efficiency, and real-world usage differences for global Apple users.
Learn the 6 essential USB cable testing methods used during production, including electrical testing, bending tests, E-marker validation, thermal safety testing, and data transmission testing. A complete quality control guide for OEM USB cable manufacturers and global buyers.
