Thanks to gallium nitride, you can create much more compact power adapters than before. This technology has replaced silicon in many products, such as this 30 W charger from Anker which is more compact than Apple’s 18W charger. Or this model 100 W which is the size of a deck of cards.
This technology is very practical, but Apple has not adopted it to date, which explains why its power adapters remain on average quite large. This could change, however, if this rumor from China and reported by MacRumors. According to the site IT Home, Apple is said to be among the companies that will soon use gallium nitride in one of its power adapters. The rumor does not specify anything else, nor the product which would be concerned, nor a calendar.
We imagine that the whole range could be improved thanks to gallium nitride. Companies that use it sometimes manage to reduce the size of their product in half compared to that of Apple, at equivalent load power. All Macs could benefit from the change, but so would the iPad Pro as well as the iPhone 11 Pro, all supplied with an 18 W power adapter significantly larger than that of 5 W supplied for years. The successor of silicon could allow to return to this size, but while keeping the charge fast.
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