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The Simmax USB Serial SIM Card Reader is a low-cost, external device designed to read and write data to GSM mobile SIM cards. It connects via USB but communicates using a virtual serial port (COM port). The "Simmax" brand is often associated with generic chipset PL2303 (Prolific) or sometimes FTDI for USB-to-Serial conversion. Simmax USB Serial Sim Card Reader Software Driver .rar
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