USB 32-PORT GSM/GPRS MODEM POOL Based Wavecom module Q24Plus 850/900 /1800/1900 MHz With TCP/IP stack 32 SIM card slots USB 32-PORT GSM/GPRS MODEM POOL Product DescriptionUSB interface Based Wavecom module Q24Plus850/900 /1800/1900 MHzWith TCP/IP stack32 SIM card slots for mini card or max cardWith earphone JackComply with GSM Phase2+ standardSMS, MMS, data, voice, internet serviceSupport Win8/ 7 ...