I got this to conduct an experiment. It worked just great! to explain, my computer only has base 10/100 and a USB 2.0 interface. Since the USB 2.0 interface is faster than the base 10/100, I hoped that using this on a USB 2.0 port would give a faster data rate over using the base 10/100 port. I am very happy that it did, the data rate is in most cases at least twice as fast as the base 10/100.
Update 08/31/2017 - I use this on a laptop that only has USB2 port and the Ethernet is base 100. USB2 has a speed of 480 megabit which is faster than the 100 megabit of the Ethernet. Using the adapter for my Ethernet instead of the Ethernet port on the laptop gives me much higher speed and performance.