This dongle can be used in 2g and 3g networks all over the world. Huawei launched this dongle in different countries with small difference in model and logos. Unlocked versions also available on various online website and platforms.
E3131 Specification:
3G UMTS / HSPA + Frequency: 2100MHz/900MHz
2G Frequency: GSM / GPRS / EDGE 850/900/1800/1900 MHz
Data DL Speed: Max 21 Mbps
Upload Speed: Up to 5.76 Mbps
MicroSD memory card slot up to 32GB
Suppot Text messages,Broadcast reception and Group SMS
Antenna: Built in and support external antennas
Number of entries in the phonebook: up to 100
Supported Systems Windows XP,Vista Win7 or above
Weight: about 30g
![[Image: HUAWEI_E3131_3G_USB_STICK_21Mbps_downlink_2.gif]]()
![[Image: 557032934_567.jpg]]()
E3131 Specification:
3G UMTS / HSPA + Frequency: 2100MHz/900MHz
2G Frequency: GSM / GPRS / EDGE 850/900/1800/1900 MHz
Data DL Speed: Max 21 Mbps
Upload Speed: Up to 5.76 Mbps
MicroSD memory card slot up to 32GB
Suppot Text messages,Broadcast reception and Group SMS
Antenna: Built in and support external antennas
Number of entries in the phonebook: up to 100
Supported Systems Windows XP,Vista Win7 or above
Weight: about 30g
![[Image: HUAWEI_E3131_3G_USB_STICK_21Mbps_downlink_2.gif]](http://couponzclub.com/wp-content/uploads/2014/04/HUAWEI_E3131_3G_USB_STICK_21Mbps_downlink_2.gif)
![[Image: 557032934_567.jpg]](http://img.alibaba.com/img/pb/934/032/557/557032934_567.jpg)