Fast Charging & Sync Data: usb c to usb a adapter offers USB 2.0 data transfer speed up to 480Mbps for you to transfer datas and supports 3A power output for charging cell phone or tablet.Reliable & Durable: Our usb adapter to usb c are constructed with high quality materials for maximum reliability and durability.(Seller's Reminder*****) Be aware that these adapters are not suitable for video exportation and cannot be used with cables, adapters, or docking stations that provide video output, with the exception of webcams. Charging and duplicating files of any kind, use with USB-C earphones, wireless network adapters, SD card adapters are available with these adapters.(Note: Due to the incompatibility of charging protocols, this adapter doesn't fit your Magsafe Charger)For Charing & Data: This is a USB-C female to USB-A male adapter which is especially designed for charging or data transfer ONLY, it will NOT support vidoe signal transmission. Important Note: this adapter doesn't fit your Magsafe Charger and cannot charge MacBook or any other laptop.Plug and Play : With our usb a to c adapter, you can turn your legacy devices like charger, power bank, car charger, computer, laptop, usb hub, smart TV and more into a USB-C enabled platform. Pack of 8, can convert the ports of all your devices at the same time.