

OWC sells an external enclosure for the original Apple SSD you remove from your laptop. Last year people using third party SSDs (including OWC) were unable to upgrade macOS due to firmware issues and the only fix at the time was to install HS or Mojave to an original Apple SSD first so the system firmware was updated. SanDisk - Ultra 1TB Internal SSD PCIe Gen 3 x4 NVMe.

Those are also the only third party SSDs with any official support behind them when used with a Mac. You do have to be careful as one of the Aura SSDs requires OSX 10.13+ High Sierra to be used or the SSD won't be recognized. NVMe SSD NGFF Upgrade Adapter 656-0076B for Apple Macbook Pro A1708 2016 2017. M2 NGFF NVMe SSD Adapter Card for Macbook Pro A1708 2017 2016 SSD as 656-0076B. The only option for an internal third party SSD without the use of an adapter is the OWC Aura SSDs which mentions. Drive Cables & Adapters Share Add to Watchlist. You will need to do more thorough research before choosing this option.

I do know that some Samsung SSDs are not compatible with a Mac, but I don't know which ones. I know some people on these forums have used a Sintech adapter to use a standard M.2 SSD, but I believe you have to be careful which one you get.
