Max SSD size in Nucleus+

[mikeb]

The physical size must be 2.5" / 9.5mm or smaller in the original Nucleus, the v2 takes bigger.

SSD drive for Nucleus+

The SATA interface is not the limiting factor, the filesystem is. Ext4, the filesystem used with Nucleus and Rock, has a maximum filesystem size of 1EB and maximum filesize of 16TB. Therefore, if you can physically fit it in the box, it should work.