TP Link WiFi Router 3G/4G 150Mbps TL-MR3020 Portable

Interface	1 10/100Mbps WAN/LAN Port, USB 2.0 Port for 3G/4G modem, a mini USB Port for power supply.
Button	Reset Button, Mode Switch
External Power Supply	5VDC/1.0A
Dimensions ( W x D x H )	2.9 x 2.6 x 0.9 in. (74 x 67 x22 mm)
Antenna Type	Internal Antenna

WIRELESS FEATURES
Wireless Standards	IEEE 802.11n, IEEE 802.11g, IEEE 802.11b
Frequency	2.4-2.4835GHz
Transmit Power	<20dBm
Wireless Modes	3G Router, Travel Router (AP), WISP Client Router
Wireless Security	Support 64/128 bit WEP, WPA-PSK/WPA2-PSK, Wireless MAC Filtering