It's hard to find distribution for Netstor these days. Areca makes a wonderful host card that works very well with Mac computers. The Netstor product is reliable, but most people stick with G-Tech Studio XL, Promise Pegasus, Maxx Digital or Areca. I am pretty sure that Maxx Digital can get a 16 bay thunderbolt 3 chassis without issue. To my knowledge, there are no G-Tech or Promise 12 or 16 bay RAID enclosures.