I am using an SP4 machine and the monitor I need to run is a Visio 55" 4K and does not get a signal do I have the wrong docking station with the Plugable UD-3900 the rating is 1.4 not 1.3 for the TV and with the Visio disconnected the Dell 22" monitor works
Hi Thomas, thanks for posting! Unfortunately, our UD-3900 docking station is unable to support a 4K resolution and only has a maximum resolution of 2560x1440 if the HDMI cable is connected to the *only* attached monitor.
I do apologize for this limitation and we do our best to call out the maximum resolution on our Amazon listing and Product pages. If your purchase is within our 30-day return policy, you can return our dock for a full refund at Amazon.com/returns. If your purchase is outside of this 30-day window, we would be happy to assist with a return for full refund as we certainly do not want you stuck with a device that does not meet your needs. If that sounds like a plan, please just reach out to us directly at email@example.com with your Amazon Order ID for your purchase and reference ‘Ticket Number 148397’ in the subject line so we can match everything up.