Your iPad with Retina display includes a 12W USB Power Adapter for charging directly through an electrical outlet. 
Purchase this additional adapter to have a second charger for home or office. 

Featuring a compact design, this power adapter offers fast, efficient charging.
Charging cable sold separately.

Compatibility:

iPad mini (5th Generation), iPad Pro 12.9-inch (4th Generation), iPad Pro 12.9-inch (3rd Generation), iPad Pro 11-inch (2nd Generation), iPad Pro 11-inch (1st Generation), iPad Pro 10.5-inch , Apple Watch 40mm, Apple Watch 40mm, Apple Watch 42mm, Apple Watch 44mm