Mattia, To travel to the U.S. you need some kind of a visa, however in your case I believe B1 or B2 would work just fine. Since you don’t intend...
(a) You made a typo in the card number, CCV code, expiration date, name or address;
(b) Your card balance is too low;
(c) Issuing bank has declined this transaction for some other reason related to your account.
