Hello. I have a 4-bay external hard drive enclosure, a Vantec NST-640SU3-BK with a USB 3.0 port, that I have connected to the MyNet N900's USB 2.0 port. It is filled with 3 identical 2TB drives and a 320GB drive all formated as simple volumes (separate drive letters since I understand Windows 7 does not support spanning of external USB drives), however the N900 only shows me 2 of the four. I thought I had properly mapped it, and I can see all 4 drives if I plug it directly into my laptop's USB 2.0 port. Does anyone have any suggestions about how to make the other 2 drives available? Or would this issue be due to a technical limitation of the router? Thank you.