Kevin,

Yes you are right! It is PEXUSB3S24 - too big of hurry is my only excuse.

My device is a Tandberg Data RDX QuikStor removable disk drive and it says USB3.0
it comes with a Y-cable, so I plugged the two ends into the dual port StarTech card.

I will contact StarTech about this.

thanks for the pointers

Jim