The Semtech AirLink RX400 is a compact, ultra-rugged 5G RedCap router designed for mission-critical and remote asset applications operating in harsh environments. Combining right-sized 5G RedCap connectivity with industry-leading power efficiency, the RX400 enables reliable communications even in locations where only solar or battery power is available. With support for both 5G RedCap and LTE Cat 4, it allows organisations to modernise critical infrastructure today while remaining future-ready as networks evolve.

Engineered for extreme conditions, the AirLink RX400 features a sealed aluminium housing rated to IP64 and tested to MIL-STD-810H for shock, vibration, and environmental resilience. Despite its compact footprint, it integrates single Gigabit Ethernet, optional WiFi 6, USB-C with power delivery, dual-band GNSS, and built-in single or dual RS-232 serial connectivity, making it well suited to legacy and industrial systems. Its ultra-low power consumption further supports long-term operation in remote, off-grid deployments.

Running on AirLink OS, the RX400 supports flexible management via the cloud-based AirLink Management Service with AirLink Complete, as well as optional on-premises management through AirLink Manager and AirLink Mobility Manager. Sharing the same mounting pattern as the AirLink RV series, it enables straightforward upgrades while maintaining consistent installation workflows.

The AirLink RX400 is ideal for mission-critical use cases such as utilities, critical infrastructure, oil and gas, SCADA systems, and remote monitoring applications where durability, reliability, and power efficiency are essential.