I’m using a Gmyle ExpressCard to provide USB 3 ports on an older laptop running Windows 8.1. The ports work fine for a variety of devices I’ve connected to them (Blu-ray player, SSD drive, etc.), but when I connect my UD-3900, the dock does not provide video, although its USB ports work (it becomes a rather expensive USB hub). If I connect the UD-3900 to one of the laptop’s native USB 2 ports, the video functions, albeit with less-than-stellar performance. I believe I have the latest drivers for the ExpressCard, and I’ve also tried the “really clean” reinstall of the Plugable/DisplayLink drivers involving the cleaner app and the two reboots.
Is this a problem for the UD-3900 with all ExpressCard-provided USB 3 ports, or does my inexpensive Gmyle card just not muster up? I’d be willing to replace the ExpressCard with another model if someone could recommend a model that’s known to work with the UD-3900.