Methods and systems for providing an advanced hardware system for a self-service kiosk are disclosed herein. In specific embodiments of the invention, a payment interface device is provided. The device includes an integrated touch display, a means for receiving payment information, and a casing holding the integrated touch display and the means for receiving payment information. The device also includes an applications microprocessor and a secure microprocessor located within the casing. The applications microprocessor instantiates an operating system and stores instructions for execution by the operating system for operative communication with a peripheral bar code scanner and a peripheral display. The secure microprocessor stores instructions to encrypt payment information for the system and is in operative communication with the means for receiving payment information.