What interface is a card reader?

[gboyce at badbelly.com (gboyce)]

On Mon, 24 Jul 2006, Laura Conrad wrote:

>>>>>> "Billy" == Billy McCarthy <billy at reshippie.net> writes:
>
>    Billy> Odds are, it's an internal USB connector, that would hook
>    Billy> up directly to your motherboard, not through the external
>    Billy> ports on the back of your computer.
>
> That's what I would have guessed too, but there are several things
> labeled USB on the motherboard, and this cable doesn't connect to any
> of them.

What motherboard?