USB 16-PORT GSM/GPRS MODEM POOL Based Wavecom module Q24Plus 850/900 /1800/1900 MHz With TCP/IP stack 16 SIM card slots USB 16-PORT GSM/GPRS MODEM POOL ... for mini card or max cardWith earphone JackComply with GSM Phase2+ standardSMS, MMS, data, voice, internet ... 400*120*130mmWeight: 3kgAccessories: 1 USB cable , 1 power cable, 16 antennas,16 earphones, CDSpecification for dataGPRS Class 10 ...