The card originated in South Africa and was intercepted by officers from the UK Border Agency in Belfast. It was destined for an address in Glengormley and contained 110 grams of cocaine.
According to officials the drugs had an estimated street value of $63,000.
A 21-year-old woman was arrested last Thursday in Glengormley and was later released on bail pending further inquiries.
Maggie Eyden, spokeswoman from the Northern Irish branch of the Border agency said officers remain vigilant to drugs entering the country.
“Our officers are on constant alert to keep drugs and other banned substances out of the UK,” she said.
“Drugs devastate lives and communities and my officers at the UK Border Agency, along with colleagues from other law enforcement agencies, are determined to stop them reaching our streets.”