TP-LINK TL-MR3420 N300 3G/4G Wireless n router can't put the SIM "free charging cable"

TL-MR3420 3G/4G Wireless N Router-Compatible with USB LTE/HSPA+/HSUPA/HSDPA/UMTS/EVDO Field test
- Reserve 3G/4G and WAN connection data. "Online all the time"
- Wireless HD video sharing in the area at a maximum speed of 300 Mbps. The system allows the system administrator to determine the number of bandwids that are allocated to each PC.
* The compatibility of the 4G LTE modem can be used with TL-MR3420 version 2.0 or more.
Product details. 3G Router TP-Link (TL-MR3420) Wireless N300
Brand: TP-Link
Model: TL-MR3420
Size: 20.40 x 13.80 x 4.40 cm
Total Weight: 0.72 kg
Standard: IEEE 802.11B, IEEE 802.11G, IEEE 802.11N
Two fixed antennas. Safety: Support WeP 64/128 bit, WPA-SPAK/WPA2-SPSK, wireless MAC filtering. /EVDO
1 port 10/100mbps wan
4 LAN 10/100Mbps port
Supports automatic negotiations and Auto-MDI/MDIX
Wireless sharing: 4G/3G/2G 3G/4G
The compatibility of the operating system: Microsoft® Windows® 98SE, NT, 2000, XP, Vista ™ Windows 7, 8, 10,
Mac® OS, Netware®, Unix® or Linux
Power Supply: 12VDC/1A
Working temperature: 0 ° ~ 40 ° (34 ° ~ 104 °) << BR> Storage temperature: -40 ° ~ 70 ° (-40 ° ~ 158 °)
Working moisture: 10% ~ 90%, not condensed. % Not condensed