With USB hubs all devices run at the speed of the slowest device. Do pass-through ports work the same way?

>I think some if not most of the devices that plug into "popular ports" are pass-through i.e. you can continue to use the ports, they just get extended some distance outward. Like the old parallel port dongles used for copy protection.
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>Some more ideas at http://superuser.com/questions/555373/ways-to-physically-secure-laptop-that-has-no-kensington-lock .