Yes. The passport card is a wallet-size document issued by the U .S. Department of State. While its permissible uses for international travel are more limited than the U .S. Passport book, the passport card is a fully valid passport that attests to the U .S. citizenship and identity of the bearer. As such, the unexpired passport card has been included on List A of the Lists of Acceptable Documents on Form I-9.
Official Website of the Department of Homeland Security