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The (often labeled as "K5188 New" or "Xidol New Gen") is a GSM/GPRS modem designed for M2M (Machine to Machine) communication. Unlike a standard USB Wi-Fi adapter, this device acts as a cellular modem. It typically accepts a standard SIM card and connects to 2G or 3G networks (depending on the regional variant) to send/receive data or SMS. driver modem xidol k5188 new