1.Just like 4/8/16 /32/64 single-channel equipments work at the same time
2.16 SIM card slots, support 4/8/16 /32/64 SIM cards(big or small support)
3.Connection to your computer through via USB data cable(ONLY USB INTERFACE)
4.Each channel with separate power switch
5.Each individual module be demolished
6.Industrial class modules, elegant shell
7.Wireless access to internet
8.Comply with GSM phase2 standard
9.Send and receive SMS in bulk 

KEY FEATURES
♦ USB GSM/GPRS modem pool
♦ Based on wavecom industrial Q24plus modules
♦ 4/8/16 /32/64 x SIM card(big/small) slots

♦ GSM frequency: 850/900/1800/1900MHz
♦ Send 2400/4800/9600/19200/38400 SMS per hour
♦ Interface:USB2.0
♦ Wireless access to internet
♦ Double tone multi-frequency function(DTMF)
♦ Cluster send and receive SMS
♦ Maximum transmitting speed 14400 bits/s
♦SMA antenna:3DBI
♦ Input voltage: 100 to 240V