Cardknox is a developer-friendly EMV solution that can be integrated with POS systems using only a few lines of code. Offering gateway-only or integrated payments with the lowest rates and most aggressive residuals in the industry, Cardknox serves thousands of customers across every major industry throughout the United States, UK and Canada. The Cardknox solution supports Verifone, PAX, and Ingenico terminals with PCI-validated P2PE.