The SDX Pro also supports the optional SIM injector, which enables connection to an additional eight mobile network providers. This mitigates weaknesses in mobile coverage and ensures consistent connectivity. If your deployment crosses country borders, you can also use the SIM injector to load multiple SIM cards, avoiding roaming charges. 3225163 Fanless design Suitable for high particulate environments where other fan-based routers would not hold up. Power your IP phones, cameras and access points. Robust metal housing The router supports Gigabit LTE out-of-the-box. It has a replaceable mobile radio module for future technologies. So if you need to upgrade to 5G, you can simply replace your old module with a new one. In addition, the HD4 MBX is capable of achieving a throughput of 2.5 Gbit/s, so you have enough bandwidth for Gigabit Ethernet, 5G or future cellular technologies. SpeedFusion allows users to combine any number of connections into a point-to-point connection to achieve what others cannot: High End Connectivity REAL BONDING Combine the bandwidth of several mobile connections to create an ultra-fast data connection. Fulfill bandwidth-intensive and latency-sensitive tasks without a fixed network connection. HOT FAILOVER Hot Failover maintains secure tunnels across all available WAN connections to keep the network up and running if one connection fails. Should a WAN connection fail, SpeedFusion immediately routes traffic to a working tunnel for uninterrupted VoIP sessions. CARRIER Independent SpeedFusion is carrier independent and the products are certified for multiple carriers. By combining the coverage of multiple carriers, the likelihood of running into a blind spot or network congestion is minimized. RELAXED With the help of WAN Smoothing, network traffic is assigned to the WAN connection with the lowest latency. Use multiple WAN connections to create a single, jitter-free data stream.