You may check CBP web site for detail.
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e xl http://www.cbp.gov \Zh)oUHd 1`}fbX;"m) The following is mentioned in U.S. Customs and Border Protection Declaration Form
kIfb! ^2AF:(E Money And Other Monetary
RYV6hp)| Instruments
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5sqM: You may bring into or take out of the country, including
I|j tpv} by mail, as much money as you wish. However, if
4bxkp3~h; it is more than $10,000, you will need to report it to
/SUV'J) CBP. Ask the CBP officer for the Currency Reporting
"{Be k< Form (FinCen 105). The penalties for non-compliance
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8\M can be severe.
28)TXR
r- “Money” means monetary instruments and includes U.S.
p;7 4+q or foreign coins currently in circulation, currency, travelers’
&S3W/lQs checks in any form, money orders, and negotiable
#VOjnc/rW instruments or investment securities in bearer form.