I just looked at the Scan website and the prices for both units are now the same, so I put the two side by side for a
comparison.
It looks like one of the cases might be a later revision, there are differences in the number of drive bays, the number of fan bays varies as well as one has provision for up to five fans while the one I prefer has space for eight and this also ships with 1x120 plus 2x140mm fans instead of 1x80 and 2x140mm. There are also very slight differences in dimensions like an extra 0.5mm width and 0.2mm less for depth but I doubt you'd be able to tell. This does mean you lose three drive bays to make space for the extra fans, but eight drive bays would be enough for me.