Industry’s Most Power-Efficient Rugged 5G RedCap Router*

The AirLink® RX400 delivers mission-critical 5G RedCap connectivity to the extreme environments where critical infrastructure operates. With industry-leading power efficiency, the RX400 enables solar and battery-powered installations in locations beyond the reach of traditional 5G solutions. Its ultra-rugged design thrives in substations, wellheads, and remote utility sites, while built-in RS-232 serial connectivity and edge computing capabilities modernize SCADA systems without costly equipment replacement. With full LTE Cat-4 support, the RX400 enables instant connectivity today with seamless transition to 5G as networks advance. Built on Semtech’s 30+ years of field-proven mission-critical connectivity expertise with defense-in-depth security and cloud or on-premise remote management options, the RX400 enables utilities and industrial organizations to securely modernize infrastructure today while protecting critical investments.

• 5G RedCap and LTE Cat-4 connectivity for future-proof deployments
• Ultra-low power consumption (756 mW idle), ideal for solar/battery powered installations
• Ultra-rugged, compact solution with 2 antenna elements, bringing 5G features to previously inaccessible equipment
• Serial, Ethernet, Wi-Fi 6 (optional), and USB-C with power delivery
• New-gen solution with advanced networking and edge computing capabilities
• Includes AirLink Complete – Compatible with AirLink Premium
• On-premise management option (through AM/AMM) – requires separate licenses
• Same footprint and mounting as AirLink RV series for easy 5G migration

Use Cases

• Utilities and critical infrastructure
• Oil and gas
• Smart cities
• Private networking, including Anterix

Requires two compatible 5G antennas with 2 elements (vs 5G eMBB with 4 elements).
The RX400 uses SMA (cellular and GNSS) and RP-SMA (Wi-Fi) antenna connections.
The RX400 uses nano-SIM (4FF) carrier SIM cards.
The RX400 can be powered through both dedicated DC power or USB-C power connectors.

*Based on comparison of market-available data as of November 2025 for comparable rugged MIL-StD-810 IP64 5G RedCap routers