high efficiencyHigh-quality Tinned copper wire maximizes signal quality and increases durability. Sync and . Charge at fast speeds on your lightning devices. Our technology teams make thousands of tests to ensure 100% safetyLightning USB CablesGold-plating technology to improve the wearability and prevent corrosion;Thick and has more copper wiring inside to make charging transmission up to three times faster than ordinary cables and makes it safer.High Speed Charge & SyncCharge around 10% faster than many standard cables and sync at speeds of up to 480Mbps through wide diameter 28 / 21 AWG data and power wires.