... /DCS1800/PCS1900 WCDMA/HSDPA:2100M , 1900M, 850M,900M(optional). SEW270 module is WCDMA/HSDPA/GSM/GPRS/EDGE manufactured by Strong Rising ... help you realize the following: MODEM, U-Modem, Embedded Module, Wileless Phone, Smart Phone, Multimedia Phone and Touch-screen Telecom Device, etc. 3G module