In addition to an iPad, many people have another iOS device like iPod or iPhone. If you want to make full use of Apple 12W USB power adapter, the PowerShare adapter may be suitable for you.
The PowerShare is an innovative and practical adopter designed for official iPad wall charger. As we can see from the images, the adapter features compact design with rubberized finish for portability and an easy grip, and the power adapter perfectly fit on top of your Apple 2.1 or 2.4 Amp wall charger in order to provide two USB charging outlets to charge your iPhone and iPad at the same time from the official USB charger.
The PowerShare adapter is priced at $14.99 USD. If you’re interested, jump to CHIL official site for more details.