I found a KB article that explains this:
https://kb.vmware.com/s/article/90364
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Other virtual devices:
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I tried to disable the devices by editing the .vmx file setting vmci0.present and ehci.present to "FALSE", but that did not have any effect on the Device Manager list.
I don't know what VMCI is supposed to do, but EHCI is for USB 2.0. Since XHCI also supports USB 2.0, EHCI is not necessary.