... , dual sim router, dual band wireless router, dual 3g router, dual router, 3g sim router, huawei wireless sim router, dual card wifi router, 3g+wifi router, dual 3g+ ... /1900MHzGPRS/EDGE CLASS 12BandwidthHSUPA:5.76Mbps(Upload speed)/ HSDPA:7.2Mbps(Download speed)/UMTS:384Kbps (DL/UL)TX power< ... or RS485/RS422) port, 15KV ESD protectionData bits: 5, 6 ,7, 8Stop bits: 1, 1.5, 2Parity: none, even, odd, ...