The hub does light up with/without power supply attached when plugged into samsung 64-bit windows 7 laptop. No notification from Windows 7 that it is plugged in. Inserting any usb device into any of the 10 ports does not get reflected by Windows and no usb device works plugged into hub.
I don’t remember how or where I ordered it. It seemed to work on Windows 8, but then Windows 8 got unusable, so I switched hub to my laptop. Hub was probably not the cause of unusable Windows 8.
My email address is email@example.com.