There are a few different ways to add a prepaid card to Coinbase. The most popular way is to use a service like BitPay or CoinsBank.
These services allow you to load your prepaid card with Bitcoin or Ethereum and then spend it at any merchant that accepts those cryptocurrencies.
Another way to add a prepaid card to Coinbase is to use a service like Changelly or Shapeshift. These services allow you to convert your fiat currency into cryptocurrency and then send it to your Coinbase account.
The final way to add a prepaid card to Coinbase is to simply buy cryptocurrency with your fiat currency and then send it to your Coinbase account. This method is the most expensive and risky, but it is also the fastest way to get cryptocurrency into your Coinbase account.
No matter which method you choose, adding a prepaid card to Coinbase is easy and only takes a few minutes.