H8922S 3G/4G router is an industrial grade router for wireless M2M applications. It features dual SIM backup, 4 LAN ports, 1 WAN port (for WAN and cellular network backup), VPN (GRE, PPTP, L2TP, IPSec, OpenVPN), Terminal Row for GPIO and serial data transmission, mimo Wi-Fi and GPS optional. It is an advanced choice for wireless M2M applications with extremely reliable for data transmission.High Performance, Fully Open, Excellent Scalability Support OpenWrt Support feature customize with API CPU: 580MHz SDRAM: DDR2 256MBFlash: 128MbMultiple Links Connection Insurance Dual SIM single module for cold backup Dual SIM dual module for hot backup or for load balance SIM/WAN backup, dual SIM backupWAN/SIM1/SIM2, 3 links backupUltra Secure Data Transmission VPN support GRE/L2TP/PPTP/IPSec/OpenVPN GRE over IPSec, IPSec over PPTP/L2TP Supports DHCP Server SNMP network management, NTP support, GPS clock support OSPF, RIP, BGP optional Optional QoS(Quality of Service)smart control base on protocol, application, IP subnetStatic route, RIPv2, OSPF, BGP and policy routeFull Network Mode 4G(TD-LTE/FDD LTE), DS-HSPA+, HSPA+, HSPA, WCDMA, EVDO, TD-SCDM, CDMA1x, EDGE/GPRS WAN、WLAN、SIM1SIM2 multiple way network WLAN AP/station/repeater, 802.11n(802.11ac optional), at most 300Mbps 4 LAN port WAN support ADSL(PPPoE), static IP, DHCP client Support VPDN、APN private network 802.11b/g/n(ac optional) Wi-Fi optional, WPS key Supports DNS proxy and Dynamic DNS (DDNS) Multiple Working Modes LED monitor Internal Storage Support WEB、CLI、SSH、multiple parameter management Support timing operation, good control on flow and time of internet Data trigger online/offline SMS/phone trigger online/offlineLCP/ICMP/flow/heartbeat check, ensure network usabilityEasy Maintenance Operation Supp