D-Link DWR-111 N150 3G Router

Features:-
3G WAN failover take over if the wired Internet connection is lost
Load sharing allows bandwidth to be distributed between a wired & mobile Internet
Max physical rate up to 150Mbps in 802.11n 1×1 mode
Backward compatible to IEEE 802.11b/g standards
Dual-active firewalls and WPA/WPA2 wireless for secure network sharing

Specifications:-

Specifications
Device Interfaces One 10/100 Ethernet LAN port
One 10/100 Ethernet WAN port
Wireless N 150
USB 2.0 port for 3G USB adapter
Compatible Mobile Networks EV-DO/CDMA
HSPA+/HSUPA/HSDPA/UMTS
Standards 802.11g/b, compatible with 802.11n devices
802.3
802.3u
Wireless Security WPA & WPA2 (Wi-Fi Protected Access)
Wi-Fi Protected Setup (WPS), PBC/PIN
64/128-bit WEP (Wired Equivalent Privacy)
Firewall Network Address Translation (NAT)
Stateful Packet Inspection (SPI)
MAC address filtering
Website filtering
VPN L2TP/PPTP/IPSEC VPN passthrough
L2TP/PPTP connection
Advanced Features 3G Modem/Ethernet WAN backup
Auto WAN Failover
QoS Management