Multiple iSerialNumbers for the same device and other USB oddities

Who else has seen this behavior that can lend some insight into what is going on? The attached image shows entries within the USBStor key (serial numbers partially crossed-out in blue). You'll see multiple devices have multiple unique iSerialNumbers. I have not come across this before and have only been able to spitball the cause (USB dock in use? Plugged into different hardware ports?).

There are some other interesting things going on. The devices identified in orange were all plugged …

computerforensics device usb