Hi guys, This may seem like a bit of noob question but here goes anyway. Recently I moved into a new flat and got broadband. For the first few days the speed was 5mbits/s. Today it went down to 1mbit/s. I called the provider. They asked me to do some speedtests with a direct connection to the router i.e. ethernet to eliminate wifi as the problem. The problem is: the macbook air doesn't have ethernet. So I started thinking about the adapter. Now, the ethernet max speed is around 100mbits/s. But this is an ethernet to usb adapter. My question is to what extent will the usb throttle the ethernet speeds? In other words - what's the max speed of the usb end of that adapter when connected to a 2010 macbook air? Is it 12mbits/s or 480mbits/s? I know usb1 is 12mbits/s and usb2 is generally 480mbits/s but I've also seen some distinction between usb2 and high speed usb2 only the latter of which is supposedly 480mbits/s. Can I use this adapter to perform those broadband speed tests without skewing the results? Maybe I should just get the latest MBA and have the thunderbolt adapter. Searching for reasons to get it Many thanks.