Dear friends, we suggest you buy 2 pieces, because buying 2 pieces in our shop will bring you an additional 10% discount. (And can be used as a backup)* Follow this shop to get coupons and save more. You can also get the following additional rights: (1. Fast delivery 2. Exclusive customer service)Extreme version powerful upgrade1. The newly upgraded liquid wire supports synchronous data transmission and 5A ultra-fast charging.2. The 5A fast charging cable is 2 times faster than the original charging cable.The 3.5-core copper wire transmission is not only faster, but also more stable.