DURABLE & STRONG - Tangle-free nylon braided fiber material, strong and wear-resistant, make CUGUNU iPhone charger cable more durable, more flexible than standard iPhone cable. Reinforced stress points designed to withstand 10000+ cycles of flex test without inner failure. FAST CHARGING - Apple certified built-in terminal and smart chip ensure your Apple devices are charged safely at their fastest possible speed. High-quality four-core copper wires support a maximum charging speed up to 2.1A and data transmission at speeds of up to 480Mbps. STRICT QUALITY CONTROL - Unique design prevents the aluminum case at both ends of iPhone Charger cord from coming unglued. We conducted a 24-hour waterproof test to prove that the product is well sealed. FULL COMPATIBILITY - Apple MFi Certified ensures complete charge and sync compatibility for iPhone 14, iPhone 14 Plus, iPhone 14 Pro, iPhone 14 Pro Max, iPhone 13, iPhone 13 mini, iPhone 13 Pro, iPhone 13 Pro Max, iPhone 12, iPhone 12 m