I believe it should say Device Bus Speed:Full, if it is a USB2.0 reacer connected to a proper USB 2.0 port.
I am going to explain what I see on mine. I am by no means a USB expert. I have a Gigabyte GA7-VAX motherboard, with two on board US port, four on headers, two to the fron panel (home made I'll add, but the USB part is a back plate modified (extended really) to become a front panel jack set.
Anyhow, what I see is:
My Computer, expanded four times, the first three times as a VIA USB Universal host controller, each expanded to "Root Hub", with 2 ports each. The fourth time is expanded once to 6 ports, called "VIA USB Enhanced Host Controller"
Whenever I connect a USB2.0 hub or flash/hard drive/card reader, it shows up in the "Enhanced Host Controller" as a Full Speed device. Unfortunately, so do my USB1.1 readers, when connected through a USB2.0 hub.