Satellite A660 - USB stick limited to 2MB/s

I have a Satellite A660 PSAW #C-047017. File transfers with several memory sticks seem to be limited to 2MB/s. Theoretically, it is significantly more than an order of magnitude higher. Is anyone else encountering this?

I'm running Windows 7 Professional 64-bit. It's a fairly new machine. I got it last fall. I bought it with the OS pre-installed. The sticks are relatively new too, purchased within a year. I just drag a file folder to the stick and the fluctuating transfer speed rarely tops 2Mbps.
I opened the device manager and saw two icons, "USB controllers" and "USB Virtualization". Each of these two icons expands into a series of child icons, but there are no warning symbols beside any of them.
About chipset drivers, I'm currently in Canada. The PSAW number reflects a Canadian variation of the model, not a European variation. I just wanted to check how widespread was the speed limitation -- perhaps it is not just a Canadian problem. For all I know, this might be the standard for USB memory sticks.
I checked Toshiba Canada for USB driver downloads (http://support.toshiba.ca/support/Download/ln_byModel.asp). The only drive was something called "NVIDIA Stereoscopic 3D USB Driver". That sounds specific to NVIDIA, and there isn't much explanation about it. For that reason, I'm reluctant to try it.
I was just wondering if anyone else experienced the same bandwidth limit in transferring files to stick. Perhaps it's not a "problem" so much as a defacto standard.

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