> For the complete documentation index, see [llms.txt](https://developer.magtek.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developer.magtek.com/hardware/card-readers/mms-dyna-devices/dynaflex-ii-go.md).

# DynaFlex II Go

The **DynaFlex II Go** is a PCI PTS v6.x certified Secure Card Reader Authenticator (SCRA) from MagTek, designed for mobility without compromising security. It features a compact, low-profile design and is ready to accept a wide range of payment types, including tap (contactless/NFC mobile wallets like Apple Pay, Google Pay, and Samsung Pay), swipe (magnetic stripe), and dip (EMV chip cards). The optional BCR model adds the ability to scan both 1D and 2D barcodes, and it also supports reading and writing non-payment NFC data for use in access control, loyalty, and transit ticketing applications. 

The device offers flexible connectivity via USB-C or Bluetooth® LE, works across Windows, Android, and iOS hosts, and is backed by MagTek’s MagneSafe® Security Architecture, including AES encryption and DUKPT key management. The official MagTek DynaFlex II Go support page is a central hub containing all the resources you'll need. There you can find product brochures, compliance documentation (including device and package inspection guides), programmer’s manuals, SDKs, a comprehensive FAQ section, and instructional videos.

### Get Started with My Device

<table data-card-size="large" data-view="cards"><thead><tr><th></th><th></th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td><a href="https://developer.magtek.com/hardware/card-readers/mms-dyna-devices/dynaflex-ii-go/documentation/developers-manuals/programmers-manual-commands"><mark style="color:$primary;"><strong>Programmer's Manual (Commands)</strong></mark></a></td><td><em>This manual provides a detailed technical reference for developers, describing how to communicate with the DynaFlex II Go secure card reader using its command set.</em></td><td><a href="https://magensa.statuspage.io/">https://magensa.statuspage.io/</a></td></tr><tr><td><mark style="color:$primary;"><strong>Quick Installation Guide</strong></mark></td><td><em>This guide offers concise, step-by-step instructions for physically connecting the DynaFlex II Go to a host device  and establishing basic communication.</em></td><td></td></tr><tr><td><a href="https://developer.magtek.com/hardware/card-readers/mms-dyna-devices/dynaflex-ii-go/documents/developers-manuals"><mark style="color:$primary;"><strong>Developer's Manuals</strong></mark></a></td><td><em>This collection includes software documentation including Programmer's Manuals and other device-specific information.</em></td><td></td></tr><tr><td><a href="https://developer.magtek.com/hardware/card-readers/mms-dyna-devices/dynaflex-ii-go/documents/user-manuals"><mark style="color:$primary;"><strong>User Manuals</strong></mark></a></td><td><em>These manuals provide comprehensive information for end-users and administrators on the proper, secure operation, mounting, and maintenance of the DynaFlex II Go.</em></td><td></td></tr></tbody></table>

### Find Developer Resources & APIs

<table data-card-size="large" data-view="cards"><thead><tr><th></th><th></th></tr></thead><tbody><tr><td><a href="https://developer.magtek.com/hardware/web-based-demos/web-based-demos-for-mms-dyna-devices"><mark style="color:$primary;"><strong>Web-based Demos</strong></mark></a></td><td><em>This page provides an interactive web-based demonstration for MagTek MMS Dyna devices, showing how to communicate with Secure Card Reader Authenticators (SCRA) using multiple interfaces.</em></td></tr><tr><td><a href="https://developer.magtek.com/hardware/reader-management-system-api/dynaflex-reader-management-system-api"><mark style="color:$primary;"><strong>RMS API</strong></mark></a></td><td><em>This page provides information on the Reader Management System (RMS) is a cloud-based API that allows you to remotely and securely manage MagTek card readers.</em></td></tr></tbody></table>

#### Download Software & Utilities

<table data-card-size="large" data-view="cards"><thead><tr><th></th><th></th></tr></thead><tbody><tr><td><a href="https://play.google.com/store/apps/details?id=com.magtek.mobile.android.magneflex&#x26;hl=en"><mark style="color:$primary;"><strong>MagneFlex Sky Browser</strong></mark></a></td><td><em>A full-featured Android browser designed for app development, enabling web apps to communicate with hardware without needing plugins, available on Google Play and the Amazon app store.</em></td></tr><tr><td><a href="https://developer.magtek.com/hardware/card-readers/mms-dyna-devices/dynaflex-ii-go/downloadable-software"><mark style="color:$primary;"><strong>Downloadable Software</strong></mark></a></td><td><em>This section provides access to various software applications for DynaFlex II Gpo, including the MagTek RMS app for remote management and SDKs for various platforms..</em></td></tr></tbody></table>

#### Review Compliance & Security Docuents

<table data-card-size="large" data-view="cards"><thead><tr><th></th><th></th></tr></thead><tbody><tr><td><a href="https://developer.magtek.com/hardware/card-readers/mms-dyna-devices/dynaflex-ii-go/compliance/pci-pts-poi-security-policy"><mark style="color:$primary;"><strong>Security Policy (PCI PTS)</strong></mark></a></td><td><em>This document details the device's PCI PTS POI security features, including its support for encryption algorithms (AES, TDEA) and DUKPT key management to ensure secure payment transactions.</em></td></tr><tr><td><a href="https://developer.magtek.com/hardware/card-readers/mms-dyna-devices/dynaflex-ii-go/compliance"><mark style="color:$primary;"><strong>Device &#x26; Package Inspections</strong></mark></a></td><td></td></tr></tbody></table>

### For more help

{% 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 %}


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