USBDeview

USBDeview is a handy little utility that lists all the USB devices that are connected or currently in use on your computer. It will also display devices that have been connected in the past. The utility can recognize devices connected in USB whether it is a USB hub, camera or flash drive, it will show which driver is used for the device whether USB 3.0 or USB 2.0 and it can also test the write and read speed of the device. So you can test which USB 3.0 flash drive is faster for writing or reading.

On the manufacturer's website there is also an optional English download.