I've got an Asus A7N8X motherboard and I'm not sure if I have USB 2.0 support. System info says my MB is an Asus A7N8X2.0...but if I remember correctly it's an A7N8X-X that doesnt support USB 2.0

4 x USB 2.0

http://www.hardocp.com/article.html?art=Mzk0