Could it be that there is actually more than one type of Hopper 3? It has been enough years since the Hopper 3 first came out that you would think that there have been at least a couple of generations of improvement since then. Maybe there is a slightly different chip set in ones that were manufactured more recently. It may not make enough difference in the performance of most features to warrant a new model number, but it certainly could explain why some Hopper 3's can see a larger total of GB's on external hard drives than other Hopper 3's can. The "officially supported limit" of 7TB may be just the bare minimum, indicating what the oldest Hopper 3's can support, with newer Hopper 3's being able to handle more than that.... why you can do it and others can’t get it to work.