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Comparison Huawei K4203 vs Huawei E3531i-1

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Huawei K4203
Huawei E3531i-1
Huawei K4203Huawei E3531i-1
from £19.99 
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from $32.00
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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
Memory card slot
SIM card slot
General
Dimensions84x27x10.5 mm
Weight30 g
Added to E-Catalognovember 2017march 2016

Memory card slot

The presence of a slot for memory card in the design of the modem. Memory cards are very popular in modern electronics as removable storage media; in wireless modems, there are two main options for working with them. The first one provides use as an external card reader, for exchanging information between the card and the device to which the modem is connected via USB (see below); Simply put, installing a card turns the modem into a "flash drive" with removable storage. And in models with Wi-Fi (see "Type"), it may also be possible to work as a server that provides access to the contents of the memory card to all wireless devices connected to the modem. As for the types of cards, the most common support for the microSD standard is that they are small enough to be easily combined with compact wireless modem cases. Note that even within the same standard of memory cards there are several varieties, and before buying it's worth to clarify which of them the device is compatible with.
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