Converting a 10 USD Amazon card to cash is an illegal and unethical practice in most cases. Amazon gift cards are designed for use on the Amazon platform to purchase goods and services.

Engaging in such conversions violates Amazon's terms of service. These terms are in place to protect the integrity of the platform and ensure a fair and legitimate marketplace. When you convert the card to cash, you are essentially bypassing the intended use and disrupting the normal flow of commerce.

Moreover, there are significant risks associated with attempting these conversions. There are many scams and fraudulent schemes out there that claim to offer this service. They may take your Amazon card information and leave you with nothing in return, or they could even use your personal details for malicious purposes. It's always best to abide by the rules and use Amazon gift cards as they were intended, rather than seeking illegal ways to turn them into cash.