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Comparison Huawei E3531i-1 vs Huawei E3131

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Huawei E3531i-1
Huawei E3131
Huawei E3531i-1Huawei E3131
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Device typeUSB modemUSB modem
Connection
Communication generation
2G
3G
2G
3G
Transmission technology
GPRS
EDGE
W-CDMA
HSUPA
HSDPA
HSPA+
GPRS
EDGE
W-CDMA
HSUPA
HSDPA
HSPA+
Ports
USB
USB
Features
External antenna connector
Memory card slot
 /microSD, до 32 ГБ/
SIM card slot
General
Dimensions84x27x10.5 mm84х27х12 mm
Weight30 g30 g
Added to E-Catalogmarch 2016january 2015

External antenna connector

The presence of a connector for an external removable antenna in the modem design. The meaning of all external antennas is described above; here we note that the connector makes it possible to use rather large antennas with the modem, which significantly exceed the capabilities of stock antennas (both internal and external non-removable ones). In addition, the user can choose the antenna at his discretion.
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Huawei E3531i-1 often compared
Huawei E3131 often compared