
Sonoff Zigbee Bridge Ultra (ZBBridge-U) – Matter-Compatible Zigbee 3.0 Smart Hub with Ethernet & Wi-Fi
The SONOFF Zigbee Bridge Ultra (ZBBridge-U) is a Zigbee 3.0 hub that also works as a Matter bridge. It connects your SONOFF Zigbee sensors, switches and plugs to the eWeLink app, and can share them with Matter platforms such as Apple Home, Google Home, Alexa and SmartThings.
It runs on a 1.5GHz dual-core CPU with 1GB DDR4 RAM and 8GB eMMC storage, supports up to 256 SONOFF Zigbee sub-devices, and connects to your network by Wi-Fi or by Ethernet cable.

Matter bridge: When the bridge and a Matter hub are on the same local network, the Zigbee sub-devices added to the bridge can be synced into Matter ecosystems. This lets you control them from Apple Home, Google Home, Alexa or SmartThings.

Strong hardware: The EFR32MG21 Zigbee chip works with a 1.5GHz dual-core CPU, 1GB DDR4 RAM and 8GB eMMC storage. This gives the hub room to run your scenes and automations smoothly as your system grows.

Up to 256 sub-devices and Turbo Mode: You can add up to 256 SONOFF Zigbee sub-devices, such as SNZB-03P, SNZB-06P, ZBMINIL2 and S26R2ZB. With Turbo Mode enabled, SONOFF states a communication distance of up to 200 m in an open environment.
Ethernet and Wi-Fi: Besides 2.4GHz Wi-Fi, the bridge has an RJ45 Ethernet port (10/100Mbps). A wired connection gives the hub a stable link to your router, which is useful when it is the centre of your smart home.

Home security hub: The bridge can act as a local alarm. You can set a scene to arm it by NFC tag, wireless button or the app, and when the alarm is triggered the bridge sounds a beep and sends a notification to your phone.
Who it's for / Works with
Homes that use SONOFF Zigbee devices and want to control them in the eWeLink app and also in Matter platforms such as Apple Home, Google Home, Alexa and SmartThings, including Alexa and Google voice control.
Good to know
To use Matter platforms you need a Matter hub (for Apple Home, for example a HomePod or Apple TV) on the same local network as the bridge.
Device support for other brands is limited: SONOFF's FAQ says the ZBBridge-U currently supports Zigbee sub-devices from the SONOFF and eWeLink ecosystems. Check SONOFF's supported device list before pairing third-party Zigbee devices.
The 200 m range is an open-space figure in Turbo Mode; indoor range through walls is much shorter.
Technical Specifications
| Model | ZBBridge-U |
| Wireless | Wi-Fi IEEE 802.11b/g/n 2.4GHz, Zigbee 3.0 |
| Zigbee chip | EFR32MG21 |
| CPU / RAM / storage | 1.5GHz dual-core / 1GB DDR4 / 8GB eMMC |
| Sub-devices | Up to 256 SONOFF Zigbee sub-devices |
| Network port | RJ45 (10/100Mbps) |
| Power | 5V ⎓ 1A, USB Type-C |
| Working temperature | -10°C to 40°C |
| Working humidity | 5% to 95% RH, non-condensing |
| Casing material | PC + ABS |
📄 User manual: Download the official SONOFF ZBBridge-U user manual (PDF)
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