Having the MacBook Pro 16 and the iPad Pro 12.9, it was deemed necessary to have another good charger for indoor use. This particular one covers both devices quickly. Of course, it is expensive but if you buy it from here, the overall cost is somewhat more tolerable. I use it with the extension cable and it provides a solution for fast charging for both devices. It's better to invest a little more and cover your needs forever, rather than getting a cheaper and weaker one that won't charge. For example, the MacBook Pro 16 charges very slowly with the 30W charger I have. I put the charger that comes with the iPad Pro in the MaSafe adapter and solved the problem there.