5 Things to Know About the TerraMaster F8-421 NAS
It has 4GB of DDR3L RAM pre-installed. You can upgrade it to 8GB using the single SO-DIMM slot.
The memory is user-replaceable. This breaks from most TerraMaster NAS enclosures, which do not allow RAM swaps.
The upgrade slot is a key differentiator. It gives you more flexibility than other TerraMaster models.
The maximum supported RAM is 8GB. That is the limit for this unit, so plan accordingly.
The RAM type is DDR3L. Make sure any replacement stick matches this specification.