... for UMTS/HSPA/EVDO USB Modem 2.1 WAN Port, 4 LAN Ports, 3.Ralink Chipset 4.Two ... /100Mbps WAN Port, 4 10/100Mbps LAN Ports, support the auto-Negotiation and auto-MDI/MDIXButtonQSS ... MAC FilteringModulation TechnologyDBPSK, DQPSK, CCK, OFDM, 16-QAM, 64-QAM Quality of ServiceWMMSecurityNAT Firewall, SPI Firewall, MAC / ... Humidity 5%~90% non-condensing high quality Wireless N 300M 4p 3G router