MagTek uDynamo 096721 Mobile Magstripe Card Reader – 3.5mm Audio Jack – Tested

✅ Tested & Working This MagTek uDynamo (Model 096721) is a 3-track magstripe card reader that connects via 3.5mm headphone jack. Perfect for legacy mobile POS systems, app developers, or simple swipe applications.
• Clean, functional unit
• Confirmed to transmit track data (tested via audio signal)
• Not provisioned — ready for setup with your POS provider
• Compact and portable design
🔌 No USB — this is the 3.5mm model

📦 Includes card reader only (no software or accessories)
🎁 Includes original box
💡 Great for Android/iOS apps that support TRRS magstripe input

📸 Ask if you'd like to see the test waveform!