Originally Posted by UKtravelbear

You don't get a card with an US ESTA as the system is electronic. Heck I have GE and I don't get a card and that cost me a heck of a lot more than €7 or $14 for my ESTA.

If you are antsy then you can print out a copy of the authorisation that has the dates on it but I have never been asked to show it. My ESTA (and GE) are linked to my passport and I would anticipate that is how the EU system would work.

If there were cards involved the cost would be a lot more than €7!