Yes ... you should be able to use it in USA and the same goes for any physical transactions for any locations in the world. We recommend you contacting the bank whenever you use the card overseas for security purposes and to prevent for the bank for blocking your card for suspected fraud (this might happen should the bank's fraud detection system auto blocks your card).

May I know what makes you think that your card would not be able to be used overseas ?
Seems this myth lingers in everyone mind for as long as I could think of.

I'm aware that sometimes Citibank, SCB, HSBC agents (especially Citibank agents) will tout their card as internationally recognized but don't be too quick to believe what they say. Some facts to consider ....

1. Some of the agents has never been anywhere overseas before so how do they know? They are reading stuff which their boss/colleagues/marketing info tell them to tell you - so are they really sure that their cards are accepted worldwide? Pop question - in which country credit cards are not accepted at all ? In which country only VISA is accepted ? (See if they can answer this)
2. Some so called internationally recognized cards are not even "recognized" because they don't have a strong presence in that country. Example Hana Bank is likely to be more well known than "HSBC" in South Korea. And vice versa ... while Hana Bank is strong in Korea, you would not recognize them in Malaysia. But would this matter ? (Read next)
3. All credit cards with Mastercard / VISA affiliation logo are recognized worldwide and that's what matters. Bank brands are secondary. Go to Korea where cc are widely used as primary payments - nobody cares about what brand/bank origin of card you hold so long the transactions are approved and they get their money/payments. Fact, debit cards has the same capabilities as well so long they carry that logo.

** Don't get confused with International money withdrawal - that's Cirrus.