... dual sim 3g router, dual Card, dual network, 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 ... (optional)SIM/UIM2 standard 3V/1.8V user card interfaces, 15KV ESD protectionPowerStandard 3-PIN power jack ... Humidity95% ( Non-condensing) EF3932 dual Card wireless router, WCDMA/WCDMA router