Ubiquiti UniFi 5G Backup U5G-EU PoE Cellular Network Adapter

Overview: The UniFi 5G Backup U5G-EU is a PoE-powered cellular adapter that provides 5G RedCap and 4G LTE WAN backup for UniFi network deployments. With a single GbE RJ45 port, nano-SIM and eSIM support, dual embedded omni-directional cellular antennas and a 1.14-inch status display, it is designed for fast field deployment and maintains business continuity when the primary WAN link fails.

Description: In enterprise network architecture, WAN redundancy is a critical design element for branch offices, campus edge locations, hotel back-office areas, factory site cabinets and temporary project sites. The UniFi 5G Backup U5G-EU is positioned as the backup to the primary fiber or xDSL link and works alongside UniFi gateways and switching infrastructure to provide cellular-based management access and operational continuity. Its single GbE RJ45 interface and PoE power method eliminate the need for a separate power adapter and allow deployment within standard UniFi site cabling practices. 5G RedCap support delivers efficient power consumption and balanced bandwidth for cellular backup, while 4G LTE fallback provides flexible connectivity options depending on coverage conditions.

On the hardware side, the U5G-EU features two embedded omni-directional cellular antennas and a maximum TX power of 26 dBm at HPUE power class 2 for robust cellular connectivity in field conditions. It delivers peak data speeds of 220 Mbps downlink and 120 Mbps uplink in 5G SA mode, and 195 Mbps downlink and 100 Mbps uplink in 4G LTE mode. Supporting B2, B4, B5, B7, B12, B13, B14, B25, B26, B30, B38, B41, B42, B43, B48, B66 and B71 bands, the adapter provides flexibility in carrier onboarding through nano-SIM and eSIM options. The 1.14-inch status display and single factory reset button help field teams quickly view device status and perform maintenance tasks. An operating temperature range of 0 to 40 °C and 5 to 95% non-condensing humidity define suitable operating conditions for indoor site cabinets and enterprise indoor installations.

In the UniFi network architecture, routing, VLAN segmentation and client roaming decisions are defined at the gateway and UniFi Network management layer; the U5G-EU acts as a backup WAN interface within this structure. Centralized visibility through the UniFi Controller for topology, device status and connectivity events reduces operational overhead across multi-site enterprise networks. In primary link failure scenarios, cellular backup supports continuity for management access, POS, IoT sensors, security cameras and guest networks with low-to-medium bandwidth requirements. It is a practical solution for WISP field deployments, retail branches, temporary event spaces and energy/logistics facilities that require a secondary access layer beyond the primary link.

Key Highlights:

• UniFi ecosystem-compatible 5G RedCap and 4G LTE cellular backup adapter
• PoE-powered; deployed over standard network cabling without a separate power adapter
• Single GbE RJ45 network interface for direct connection to UniFi gateway and switching infrastructure
• Nano-SIM (4FF) and eSIM support for carrier deployment flexibility
• Two embedded omni-directional cellular antennas and 26 dBm maximum TX power
• Peak data speeds of 220/120 Mbps on 5G SA and 195/100 Mbps on 4G LTE
• 1.14-inch status display and factory reset button for field operational visibility
• Operating temperature of 0 to 40 °C and 5 to 95% non-condensing humidity

Technical Specifications: