Can you connect a 2nd monitor using a VGA to USB 3.0 cable?

First monitor is working, and using a VGA to DVI connection (back of unit). But having problems using a VGA/USB cable for second monitor - system isn’t picking that connection up.

Hello Eric, thanks for posting. We also received an email support request from you at our direct support email ( and we have been working with you directly. The VGA to USB cable is a SYTIVE brand cable and runs Fresco Logic drivers. The adapter’s Amazon page mentions “DO NOT connect to docking station or Hub (may cause compatibility issues)” and the DisplayLink software used by our UD-3900 is not compatible with FrescoLogic drivers (…).

Thank you,

David W.
Plugable Technologies