Help appreciated. I know this is a 7 forum but....
We have fttp broadband which reliably comes in at about 75Mbps on a 10/100 ethernet cable to one of my Win 8.1 PC's using it's onboard ethernet adaptor. Perfect. I use a fast.exe speedtest program from Netflix which seems reliable in terms of realistic speed measurement.
However, in an attempt to speed up my connection with another PC (Win8.1, I know) which does NOT have any onboard ethernet, I bought a USB to 10/100 adaptor. With this PC, I get about 45Mbps over wifi, so was expecting a speed īmprovement using a ethernet cable rather than wifi. However, it consistently runs at just over 8 Mbps using the new USB to ethernet adaptor?
The adaptor is described as 'driver-free' model SR9700. When inserted, it creates a virtual E: CD? drive by the name of Supereal9700 containing a single RD9700.sfx.exe file (self extracting) which runs and seems to īnstall a driver.
I've rebooted machine, tried both USB ports (both 2.0, not 3.0) to no avail. Ethernet cable, router etc seem perfect. The speedtest consistently runs very slowly, taking over 60s to finish instead of the usual 6s over wifi? Ethernet connection properties seem OK?
Is it just a dog of a driver?

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Solved
Advertised as USB 2.0 but identifies as only v1.10
Returning for refund.