Yes. That makes sense. Had wondered about getting an additional USB socket on an Express card. Hadnt thought of the docking station though (I do have one somewhere). Might get a spare docking station while they are still available – I have a feeling the later Dell models also have a connector, but its a different format – will worry about that when I upgrade (I’m a fan of kit thats oldish, so that when it breaks it is not an expensive event – good for the stress levels.).
Will grab a card and let you know how it turns out.