Ubiquiti UCG‑Ultra (UniFi Cloud Gateway Ultra)

The Ubiquiti UCG‑Ultra is a compact, multi‑WAN gateway optimized for the UniFi ecosystem. It functions as a full gateway with routing, firewall, VPN, IDS/IPS, and SD‑WAN capabilities, while also hosting the UniFi Network controller natively. :contentReference[oaicite:0]{index=0}

Technical Specifications

• Processor: Quad‑core ARM Cortex‑A53 @ 1.5 GHz :contentReference[oaicite:1]{index=1}
• Memory: 3 GB DDR4 :contentReference[oaicite:2]{index=2}
• Storage: 16 GB eMMC (on‑board) :contentReference[oaicite:3]{index=3}
• LAN Ports: 4 × Gigabit RJ‑45 :contentReference[oaicite:4]{index=4}
• WAN Port: 1 × 1 / 2.5 GbE RJ‑45 :contentReference[oaicite:5]{index=5}
• IDS / IPS Throughput: Up to 1 Gbps :contentReference[oaicite:6]{index=6}
• Power Supply: USB Type‑C (5 V DC / 3 A) :contentReference[oaicite:7]{index=7}
• Max Power Consumption: ~6.2 W :contentReference[oaicite:8]{index=8}
• Dimensions: 141.8 × 127.6 × 30 mm :contentReference[oaicite:9]{index=9}
• Weight: 520 g :contentReference[oaicite:10]{index=10}
• Display: 0.96" LCM status display :contentReference[oaicite:11]{index=11}

Key Features

• Works as a UniFi OS device: the UniFi Network application is preinstalled for full stack management. :contentReference[oaicite:12]{index=12}
• Multi‑WAN support with load balancing and failover. :contentReference[oaicite:13]{index=13}
• Application, domain, and country‑based QoS control for traffic shaping. :contentReference[oaicite:14]{index=14}
• Full stateful firewall, threat detection (IDS/IPS), content filtering, and VLAN segmentation. :contentReference[oaicite:15]{index=15}
• Supports VPNs: WireGuard, L2TP, OpenVPN server & client, IPsec. :contentReference[oaicite:16]{index=16}
• Internet Quality Monitoring and failover via LTE backup (if configured). :contentReference[oaicite:17]{index=17}

Use Cases & Best Fit

• Ideal for deployments where you want both advanced routing/security and integrated UniFi device management in a single compact unit.
• Suitable for small to medium networks: supports 30+ UniFi devices and 300+ clients. :contentReference[oaicite:18]{index=18}
• Effective for ISPs or business setups needing multi‑WAN, VPN, firewall, and SD‑WAN in one appliance.

Limitations & Community Notes

• With IDS/IPS enabled, real-world throughput may drop below full gigabit speeds. :contentReference[oaicite:19]{index=19}
• Some users report slower speeds at endpoints even though WAN tests show near Gb performance, possibly due to internal bottlenecks. :contentReference[oaicite:20]{index=20}
• The device is passively cooled (no vents), so heat management may affect long-term reliability under heavy load. :contentReference[oaicite:21]{index=21}
• VPN (especially IPsec) performance may be limited; some users observed ~100 Mbps in site‑to‑site IPsec. :contentReference[oaicite:22]{index=22}

Keywords

UCG‑Ultra, Ubiquiti Cloud Gateway Ultra, UniFi Cloud Gateway, UniFi OS Gateway, multi‑WAN router, IDS/IPS gateway, 2.5G WAN, UniFi Network controller, SD‑WAN gateway