Now I have a TF101 but this issue should not be hardware related it should be software. What version of Honeycomb are you running. I have running Windows 7 64-bit Professional with Android V3.2.1 and it connects up just fine and looks like two hard drives to my Windows 7 (internal and MicroSD). Now I use USB HDs of all sorts so the required drivers might already be loaded but mine just connects up.