Ratoc Systems PCIU2 - Manual (Page 15)

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NOTE
You may find the [RATOC PCI USB Enhanced Host Controller] string with green ? marks.
But this doesn’t affect the peformance of this PCIU2 board.
5. To verify that the driver is installed correctly, right-click on [My Computer], select [System
Properties], and then select the [Device Manager] tab.
If you can find two [NEC USB Open Host Controller] strings and a [RATOC PCI USB
Enhanced Host Controller] string under the [Universal Serial Bus Controllers], the
driver is installed correctly.