Fast charging & data sync: this USB C to USB A adapter supports charging up to 25v/3a, and data transfer speed up to 500Mbps. Backward compatible with USB 3.0 No more waiting for long hours to charge your devices.small and easy to carry, and the adapter shell is made of aluminum alloy, which is more stable and more durable than plastic.USB to USB C Adapter USB C Female to A Male OTG Charger Type C Converter, for Laptop Car Charger Headphone Computer Hub etc devices.This is the Type-C to USB3.0 adapter converter, a good choose for you. as you know, the maximum transmission bandwidth of USB2.0 is 480Mbps (60MB/s), while the maximum transmission bandwidth of USB3.0 is as high as 5.0Gbps (500MB/s).