This version of firmware supports OpenWRT (Version 1.9).

Share a 3G/4G* mobile connection, compatible with 120+ LTE/HSPA+/HSPA/UMTS/EVDO 3G/4G USB modems, tested in the field.

Travel-size Design, small and light enough to take on the road, enables users to share a 3G/4G* mobile connection wherever 3G/4G* coverage is available.

Wireless speed is up to 150Mbps.

Three modes available for different situations: 3G/4G* Router, WISP Client Router and Travel Router Mode (AP Mode).

With 3G/4G* and WAN failover back-up strategy, TL-MR3020 can provide a sustained internet connection.

With a travel-sized design, a mini USB port, Wireless N speeds up to 150Mbps and a high compatibility with 3G modems, TP-LINK’s new Portable 3G/3.75G Wireless N Router,

TL-MR3020 is the ideal device to provide wireless cloud for iPads™, iTouches™, Android™ Phones, Kindles™ and the vast majority of other portable Wi-Fi enabled devices.

With the travel-sized and compact design, TL-MR3020 is small enough to take on the road and make sure that you can share a 3G internet connection wherever wireless 3G coverage is available.

TL-MR3020 provides you a mini USB port to be connected to your laptop or power adapter for power supply.

The firmware supports OpenWrt.
Features
Interface 1 10/100Mbps WAN/LAN Port, USB 2.0 Port for 3G/4G modem, a mini USB Port for power supply.
Reset Button, Mode Switch
5VDC/1.0A
Dimensions ( W x D x H ) 2.9 x 2.6 x 0.9 in. (74 x 67 x22 mm)
Internal Antenna
IEEE 802.11n, IEEE 802.11g, IEEE 802.11b
2.4-2.4835GHz
Transmit Power <20dBm
3G Router, Travel Router (AP), WISP Client Router
Support 64/128 bit WEP, WPA-PSK/WPA2-PSK, Wireless MAC Filtering
Firewall, MAC filtering, Denial of Service (DoS)
Server, DHCP Client List, Address Reservation
Virtual Server, Port Triggering, DMZ, UPnP
Parental Control, Host List, Access Schedule, Rule Management
CE, FCC, RoHS
TL-MR3020 router, QIG, Power Adapter, USB Cable, Resource CD, Ethernet Cable
Microsoft® Windows® 98SE, NT, 2000, XP, Vista™ or Windows 7, 10, MAC® OS, NetWare®, UNIX® or Linux.
Operating temperature:-10?~60?
Storage Temperature: -40?~80?
Operating Humidity: 10%~90% non-condensing
Storage Humidity: 5%~90% non-condensing

Shipping is Free and included in the Price. US Continental 48 sales only. All sales are final. No returns. Please ask any and all questions before purchasing. No warranties, express or implied.