Modem Pool 16 Port Q2406B GSM USB/Serial
Q24plus Freuqency: 850/ 900/ 1800/ 1900 mhz Function: bulk send SMS, MMS, data manage Support: GSM/ GPRS Interface type: USB 32x SIM card( big/ small) slots , Wireless access to internet , Comply with GSM phase2 standard Maximum transmitting speed 115KBps , Input voltage: 100 to 240V Support dual