The Sunmi FLEX 3 NFC, MSR & Scanner Module (C20000079) is a compact 3-in-1 expansion accessory designed specifically for the Sunmi FLEX 3 platform. Combining NFC contactless reading, magnetic stripe card reading and 1D/2D barcode scanning in a single module, it expands the functionality of the FLEX 3 while helping maintain a clean and space-efficient installation.