Hello there, Ibew96.

Let me point you to the right support that can help you with credit card reader compatibility.

For now, you'll need to get in touch with our QuickBooks Payments Team to help you integrate credit card readers.

Just in case you'd love to know more about processing payments for credit card transactions, feel free to check out this link: Process a payment in Merchant Service Center.​

I would appreciate if you'd let me know how it goes. Should you have any other questions about QuickBooks Desktop. I'd be pleased to help you out.