This is one, indeed. But there are many others.
I'm sure the local computershop can advice him, if he doesn't trust buying it online.
this may sound stupid but a friend wants to get a laptop only if he can wirelessly connect to his existing ADSL2 line which is connected with wires to his desktop. is this switch what i would be looking for?
if not can someone tell me what switch can be used for it, or just another way of doing it.