CFDs are complex financial instruments and carry a high level of risk due to leverage. A significant proportion of retail investors incur losses when trading leveraged products such as CFDs. You should carefully consider whether you understand how CFDs work and whether you can afford to take the high risk of losing your capital.
If you’re wondering what a card reader is, it’s an electronic terminal that allows merchants to accept payments from customers via credit card, debit card, or contactless payments. It’s also known as a POS (point-of-sale) terminal. It’s the device that connects the merchant to the buyer’s bank to authorize and record each transaction.