DynaFlex II SCR

The DynaFlex II SCR is a compact, countertop secure card reader authenticator (SCRA) that reads contact chip, contactless (NFC), and magnetic-stripe cards and encrypts cardholder data at the point of read (SRED). It connects over USB and uses the shared DynaFamily MMS command set, so everything you build against it is documented in the API & Command Reference and linked below.

Applies to: DynaFlex II SCR

Key capabilities

• Contact, contactless (NFC), and magnetic stripe card reading in one device

• SRED point-to-point encryption at the moment of read (TDES / AES DUKPT)

• NFC/MIFARE pass-through and NFC card emulation (DynaCast)

• Optional barcode reader (BCR) for scanning outside a transaction

• Compact countertop secure card reader authenticator (SCRA)

• PCI PTS POI–approved SCRA for attended acceptance (no PIN entry — see the DynaFlex II PED for PIN debit)

Build with the DynaFlex II SCR

Section	Description
Programmer's Manual	The MMS command set scoped to the SCR: message format, commands, notifications, configuration, and status codes.
Commands	The commands the SCR supports, each linking into the shared reference.
Command Support Across Products	The full device Command matrix, if you're building for more than one Dyna reader.
Security & Keys	DUKPT (3DES→AES), MAC, KSNs, encryption/decryption, and PCI requirements.
NFC/MIFARE	Working with contactless cards and tags (NTag, Classic, DESFire, Plus).

Downloads & Compliance

Section	Description
Firmware & Downloads	The MMS command set scoped to the SCR: message format, commands, notifications, configuration, and status codes.
Compliance	Compliance documentation for the SCR, including inspection documents.

For more help

Need Help?

For additional support, please contact MagTek Support:

Technical Support:

• 📧 Email: [e-mail]

• 📞 Phone: [phone] (US)

• 🕐 Hours: Monday-Friday, 5:30 AM - 5:00 PM PST

Online Resources:

• 🌐 Support Portal: developer.magtek.com

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