The compilation of the USB‐C‘s final specs may just be on the cards with Apple; however this was something that had not been finalized by the company until the original MacBook that had been launched in 2015, that was because it was the first product of Apple that came along with the USB‐C port. In its 2016 lineup of MacBook, they went ahead and issued an update as well as came up with various accessories that were USB‐C based. Even the faulty cables had been recalled by the company which was one of the reasons also why, when it came to the compatibility across the board, it was a hit and miss.
One of the things that would really be fine would be if you can purchase the MacBook 2015 accessories that are USB‐C supportive and upgrade the firmware so that you can receive the carious updates on the own products that Apple comes up with, however, it is not all of them that will be in the list. For those, who have purchased accessories for their 2015 MacBook andhave gone ahead and upgraded to a MacBook of 2016. Then there is a chance that those accessories may just not work with either the MacBook or any other device of 2016.
The makers of various accessories of Apple also stated that various power protocols were changed but Apple in the MacBook of 2016. This means that the battery packs of 5W‐12W that could be used on the models of 2015 cannot be used on the 2016’s model since now the minimum requirement is 18W. This means that even if you just go ahead and buy the accessory, there is a chance that it may not work with Mac. This may not be a good situation when you talk about the standards of product compatibility with the use of specs.