UniFi 5G Backup: Cellular Failover for Any UniFi Network
Ubiquiti's UniFi 5G Backup is a PoE-powered cellular failover device that adds SIM or eSIM 5G/LTE backup to any UniFi gateway — launching at US$99.
Internet redundancy used to be a business-only luxury. UniFi 5G Backup makes it almost an impulse purchase: plug it into any UniFi gateway over a standard PoE port and your network gains cellular failover "almost immediately," in Ubiquiti's words.
Why this matters in Australia
NBN faults, fixed-wireless dropouts and the occasional fibre cut all hit the same way: the internet stops and so does EFTPOS, cloud apps and VoIP. A cellular backup link keeps you online while the primary connection recovers — and now it costs about as much as a decent switch.
What it does
- Works with any UniFi gateway via a standard PoE connection
- Supports both SIM and eSIM connectivity
- Fully unlocked for any compatible carrier (LTE and 5G)
- Integrates with UniFi Network 10 for centralised control
- Customisable failover behaviour and traffic-routing policies
- Optimised antenna design for flexible placement
"Enterprise-level resilience no longer requires a large investment," Ubiquiti says — "simply connect it to any switch port and your network is ready for backup connectivity."
Introducing: UniFi 5G Backup (official Ubiquiti video)
Gateways to pair it with
Popular UniFi gateways for 5G Backup
Ubiquiti UniFi Gateway Lite, Compact And Powerful UniFi Gateway, Advanced Routing And Security Features, USB-C Powered
Ubiquiti Cloud Gateway Ultra, Multi-WAN, (4) GbE RJ45 ports, (1) 1/2.5 GbE RJ45 ports, USB Type C, 5V DC/3A, 100â240V AC, Max 6.2W
Ubiquiti Cloud Gateway Max, Compact 2.5G With 30+ UniFi device/300+ Client Support, 1.5 Gbps IPS Routing, 512GB NVMe SSD Included
Ubiquiti Cloud Gateway Fiber,UCG-Fiber, Desktop 10G Cloud Gateway,Integrated PoE Switch,Selectable NVR Storage,Full UniFi Application Support
Any standard mobile data SIM or eSIM from a compatible carrier works. Because failover only carries traffic during an outage, a modest data allowance is usually plenty for most homes and small offices.
Yes — failover policy is configured in UniFi Network and the device switches over when the primary WAN drops, then fails back when it recovers.
No — it works on LTE too and will use the best available cellular connection. 5G simply gives you more headroom where it's available.
Related reading
- UniFi Network 10.4 — adds full 5G radio telemetry to the UI
- Ubiquiti for small business — build resilience into a business network
- Which UniFi Cloud Gateway to buy — pick a gateway for your connection
