This article is based on an article from the Japanese edition of Engadget and was created using the translation tool Deepl.
According to internal Apple tech documents obtained by MacRumors, the SSDs are soldered to the logic board and cannot be removed (there is no SSD connector itself) in the 256GB to 2TB models with internal storage. On the other hand, in 4TB and 8TB configurations, the SSD expansion board is reportedly attached to a connector on the logic board.
However, internal documents say that the SSD and logic board are tied together for hardware encryption (via the Apple T2 chip) and that data will be lost if the logic board is replaced.
According to Apple-related information site iMore, data will be erased even if the SSD side is replaced. The MacBook Pro (2018) with the T2 chip as well, for example, was once reported to be "inoperable" (so-called bricked) unless special diagnostic software is run if a piece of hardware is replaced.
Replacing either the SSD or the logic board could result in total data loss, so it may be wise to take backups more often than ever before.
This article is based on an article from the Japanese edition of Engadget and was created using the translation tool Deepl. The Japanese edition of Engadget does not guarantee the accuracy or reliability of this article.