Thanks to the excellent help from the Plugable team, I now have a four monitor set up running off of an Inspiron.
Running 4 USB HDMI/DVI adapters, one UD3000 DS, and an Inspiron i15R-1633sLV.
Utilizing a Logitech external Bluetooth mouse, which works fine. Mutiple keyboards that I’ve tried, however, have stopped working after one or two keystrokes (Bluetooth and USB).
Is there a simple setting that I’m missing?