High-quality USAMS U38 cable made of the highest quality PVC material with a copper core. Provides full support for both fast charging and data transfer. A smart chip ensures the charging process is safe, regulating the current flowing through the cable to suit the needs and capabilities of the device being charged. The use of high-quality copper accelerates charging, providing a constant current of up to 4A. Note: Fast Charge only for OPPO devices; other devices are charged normally. - Built-in intelligent chip protects the device from damage - Trickle charge. Safe trickle charging protects the battery from rapid wear - Fast charge. Fast charging up to 4A and data transfer, stable, efficient, and time-saving - Length: 1m - Material: TPE/PVC/copper - Compatibility: Devices with a microUSB connector