Description
SONOFF Zigbee 3.0 USB Dongle Plus ZBDongle-E is an official Zigbee 3.0 USB coordinator built for local smart home control. It ships pre-flashed with EZNet 6.10.3 and is designed for Home Assistant, openHAB, Zigbee2MQTT, and other open Zigbee workflows.
Built around the EFR32MG21 platform, ZBDongle-E combines stable Zigbee communication, a practical external antenna, and an aluminum alloy housing that helps reduce interference near USB ports. SONOFF rates the dongle at +20dBm output, making it a strong option for coordinator or router deployments.
Features
- Pre-flashed with EZNet 6.10.3 for immediate coordinator setup
- Works with Home Assistant, openHAB, and Zigbee2MQTT across popular local automation stacks
- EFR32MG21 chipset for modern Zigbee 3.0 connectivity
- +20dBm output gain for stronger wireless coverage
- Router firmware support through the official SONOFF web flasher
- Aluminum alloy enclosure to help lower electromagnetic interference
Specifications
| Model | ZBDongle-E |
| Product Name | SONOFF Zigbee 3.0 USB Dongle Plus |
| Product Type | Zigbee USB coordinator dongle |
| Wireless Protocol | Zigbee 3.0 |
| Main Chipset | EFR32MG21 |
| Firmware | EZNet 6.10.3 pre-flashed |
| Transmission Power | +20dBm |
| Input | DC 5V (100mA Max) |
| Working Temperature | -10°C to 40°C |
| Shell Material | Aluminum alloy |
| Dimensions | 75 x 25.5 x 13.5 mm |
| Platform Notes | Official capacity depends on platform and firmware settings; SONOFF documentation notes different child-device limits by mode and configuration. |
The official specification panel makes the enclosure size and key electrical data easy to confirm before deployment.
Applications
The official platform graphic shows how ZBDongle-E fits into Home Assistant, openHAB, Zigbee2MQTT, and other open smart home workflows.
- Deploy a local Zigbee coordinator for Home Assistant without relying on a cloud hub
- Use with openHAB or Zigbee2MQTT for dashboards, automations, and device onboarding
- Build lab, maker, and test-bench Zigbee environments with an official SONOFF coordinator
- Reflash for router duty when extending coverage is more important than coordinator mode
Product List
- ZBDongle-E x1
- User manual x1
Other Content
The official compatibility image is useful when you need to confirm supported host systems and software ecosystems.
This official hardware layout highlights the EFR32MG21 platform and labeled board design for technical review.
SONOFF also documents how ZBDongle-E can be flashed for Zigbee router use when network extension matters more than coordinator mode.
SONOFF provides an official browser-based flasher so you can switch firmware modes without a complicated toolchain.
For Zigbee Green Power devices such as some Hue accessories, SONOFF notes using channels 11, 15, 20, or 25. If you install the dongle directly next to a noisy host USB port, a short USB extension cable can also help improve stability.
Resources
- Official SONOFF ZBDongle-E documentation
- Official user manual PDF
- Official SONOFF Dongle Flasher
- Home Assistant ZHA
- Zigbee2MQTT supported hardware
FAQ
1. Is the SONOFF ZBDongle-E pre-flashed?
Yes. SONOFF states that it ships pre-flashed with EZNet 6.10.3 for immediate use.
2. Does ZBDongle-E work with Home Assistant?
Yes. It is intended for Home Assistant and also works with openHAB and Zigbee2MQTT based on SONOFF official guidance.
3. Can I use ZBDongle-E as a Zigbee router?
Yes. SONOFF provides router firmware guidance and a browser flasher for mode switching.
4. What chipset does ZBDongle-E use?
It is built on the EFR32MG21 platform.
5. How many Zigbee devices can it support?
The official documentation gives different numbers depending on firmware and platform setup, so network size should be planned around the target software stack and router topology.