# Purpose This document addresses the proper use of the DynaFlex II Go family of secure card readers (SCR) in a secure manner. This includes information about key-management responsibilities, administrative responsibilities, device functionality, identification, and environmental requirements. The use of this secure card reader in any method not described in this security policy will invalidate the PCI PTS POI v6.2 approval of the device. Throughout this document: * DynaFlex II Go products refers to all products in the DynaFlex II Go product family, including DynaFlex II Go models equipped with a barcode reader (BCR) and Bluetooth LE connectivity. {% hint style="info" %} **Need Help?** For additional support, please contact MagTek Support: **Technical Support:** * 📧 **Email:** [support@magtek.com](mailto:support@magtek.com?subject=Support%20Request) * 📞 **Phone:** 1-562-546-6800 (US) * 🕐 **Hours:** Monday-Friday, 5:30 AM - 5:00 PM PST **Online Resources:** * 🌐 **Support Portal:** developer.magtek.com **Documentation Feedback:** Help us improve this documentation! [feedback@magtek.com](mailto:feedback@magtek.com?subject=Feedback) {% endhint %} --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://developer.magtek.com/hardware/card-readers/mms-dyna-devices/emv-common-kernel/dynaflex-ii-go/documents/compliance-documentation/pci-pts-poi-security-policy/purpose.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.