The Plugable UD-6950PDZ does not use MST. You could need a USB-C switch / KVM capable of switching alternate modes to be able to use all 3 displays. If it's a USB-C switch / KVM that doesn't support alternate modes, the two DisplayLink displays are simply using USB data. Hope that background helps, thanks! - Bernie
That's correct - The Intel Goshen Ridge chipset in the USB4-HUB3A supports one upstream port (and thus consumes one on your laptop), and provides three downstream. Net gain of two ports, plus charging, plus USB-C to HDMI adapter in the box - Bernie
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FreckledTrout - Wednesday, January 5, 2022 - link
Does it use DisplayPort MST which prevents it from being used by a KVM switch?bernieplug - Wednesday, January 5, 2022 - link
The Plugable UD-6950PDZ does not use MST. You could need a USB-C switch / KVM capable of switching alternate modes to be able to use all 3 displays. If it's a USB-C switch / KVM that doesn't support alternate modes, the two DisplayLink displays are simply using USB data. Hope that background helps, thanks! - Berniecosmotic - Wednesday, January 5, 2022 - link
If the hub uses 1 port on the host, then really it's only adding an additional 2 ports, not 3.bernieplug - Wednesday, January 5, 2022 - link
That's correct - The Intel Goshen Ridge chipset in the USB4-HUB3A supports one upstream port (and thus consumes one on your laptop), and provides three downstream. Net gain of two ports, plus charging, plus USB-C to HDMI adapter in the box - Bernie