I had 2 external drives stacked above the internal one on the A500. Remember being not completely content about the tilted and more compact design of the A1200 that forced a more loosely placement of the drives beside the A1200, which in turn took up more space than the bigger A500. On the other hand, I like the A1200 design more than the A500, so it was a mixed bag of annoyance and contentness. I did use all 3 drives extensively.