It has 1U hardware boxes and these appear to be limited in what capacity SSDs can be supported.
This would create, using SolidFire's naming convention, SF76810 and SF153610 nodes with 76.8TB and 153.6TB raw capacity respectively.
Such a hypothetical SF153610 would reach 460.8TB with three nodes, a great improvement on the twenty SF19210 nodes needed currently.
There seems to be no reason why, from a product marketing point of view, SolidFire couldn't have starting systems with 960TB drives, or less, and then a ladder of bigger supported drives; 1.92TB, 3.84TB, 7.68TB, and 15.36TB, for those customers who need the extra capacity and are willing to pay for it.
Wright mentions four things that impact on high-cap SSD support:
Increased capacity demand
New form-factors that aren't 10 drives per node
Element OS work
EMC, HPE and SolidFire parent NetApp all support larger SSDs than SolidFire so we would suggest they don't find the bullet-pointed items above an obstacle.
Will it be a point release on the Fluorine base or will a future Neon major release Element 10 be needed?