Amazon is selling the Apple 6-Foot USB-C Charging Cable for $13.99, the lowest price ever. It usually costs about $35. On orders over $25 or with Amazon Prime, shipping is free.
More than 200 customers from Amazon gave this 4.1 out of 5 stars. This cable supports data synchronization and features on each end a USB-C connector.
So if you own a USB C enabled devices like Mac or iPad Pro then this is definitely the best time to get a backup of this cable.