MHD-8100 4G is a PRO series with eight modems that can send/receive SMS with a max throughput of 240 SMS/min. The ideal choice for communication in environments where the number of messages is moderate to high. Compared to the single modem, eight modem series offers increased throughput, additional modem failover, and other multi-modem features for higher reliability and throughput. The device can be connected in a device failover cluster for the highest reliability and availability.