But do you really need each one on it’s own cable, i.e. are you using all 16 channels of each of the 11 modules? Just curious.
I’m using one Midex 8 with Windows 10 x64 with little or no problem. I have found it beneficial to do a clean out as suggested here: How to Speed up Cubase’s Initializing MIDI Startup Stage, however, I’m probably not stressing it to the same extent.