5 Things to Know About the 2017 MacBook Pro Touch Bar SSD
Regarding the MacBook Pro: 1. The SSD uses a proprietary Apple connector, not a standard M.2 slot. This means you cannot simply swap in any off-the-shelf drive.
Some configurations have the SSD soldered directly to the logic board. If yours is soldered, storage upgrades are impossible without replacing the entire board.
For models with a removable SSD, you can replace it with a compatible third-party drive. You will need an adapter to use a standard M.2 NVMe drive.
The interface is PCIe 3.0 x4 NVMe, so performance is solid once you get it working. But the process is far more complicated than it should be for a basic upgrade.
The hoops you have to jump through are ridiculous. What should be a simple swap turns into a frustrating, adapter-dependent ordeal.