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Smart begins here.
Built for Smart Home Intelligence.
SLZB-MR1U
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SMLIGHT SLZB-MR1U
Zigbee Thread PoE Ethernet USB Adapter, CC2652P powered

Zigbee & Matter-over-Thread
Supports Zigbee and Matter-over-Thread, pre-flashed and ready to use out of the box.
Flexible connectivity
Connect via Ethernet, Wi-Fi, or USB. Switch modes instantly via button or firmware.
Power-over-Ethernet (PoE)
Skip extra cables—power your hub directly through Ethernet.
Home Assistant compatible
Seamless integration with ZHA, Zigbee2MQTT, and other smart home platforms.
Boosted signal performance
Equipped with +20 dB amplifier and +5 dBi antenna for strong, stable coverage.
Compact & distinctive
Minimalist and original casing design fits discreetly into any interior.



With Ethernet-enabled SLZB-MR1U series coordinator, run Zigbee or Matter-over-Thread anywhere - without tying it to your smart-home (Home Assistant, openHAB, HomeSeer etc) server: remotely or even across buildings on different side of globe. One smart network, unlimited range.
SLZB-OS
powered
- Zigbee Hub Mode with Home Assistant Autodiscovery

Zigbee Hub Mode with Home Assistant Autodiscovery slzb-os-zhub
- Update Zigbee / Thread chips efforts-free

Update Zigbee / Thread chips efforts-free slzb-os-updates
- Scripts and Automatizations

Scripts and Automatizations slzb-os-scripts
- Cover remote locations via secure VPN Connection

Cover remote locations via secure VPN Connection slzb-os-vpn
- Change IEEE address via user interface

Change IEEE address via user interface slzb-os-ieee-change
- Switch Zigbee Coordinator or Router or Thread modes in 1 clickc

Switch Zigbee Coordinator or Router or Thread modes in 1 clickc slzb-os-mode
Functions
FIRMWARE
CHIPSETS
UPDATES
USER FRIENDLY
OTHER
Useful Resourses
Useful Resourses

Package Device






Specifications
Hardware
- Radio chip 1: CC2652P7 Texas Instruments
- Radio chip 2: EFR32MG21 Silicon Labs
- Core chip: ESP32-S3 Espressif
- Ethernet: W5500 WIZnet
- USB-to-Ethernet Passthrough: Yes
- Antenna Zigbee: L-I-shaped +5dB Baishi
- Antenna Thread: L-I-shaped +5dB Baishi
- Antenna Wi-Fi/Bluetooth On PCB, +2dB
- PoE Transformer SMLIGHT 5V
Power / Data
- Type-C in: Yes
- Power-over-Ethernet (PoE) in: Yes
- Type-C and/or PoE simultaneously: Yes
- Overvoltage power protection Yes
- Otoelectronic isolation Yes
- PoE standard Supported: IEEE 802.3af (48V)
- PoE to USB Passthorugh power: Yes
- Energy consumption: 1-1.5W
Device mode
- Zigbee coordinator Z2M/ZHA: Yes
- Zigbee router: Yes
- Matter-over-Thread router: Yes
- Simultenious Zibee+Thread: Yes
- Standalone Zigbee Hub: Yes
- Standalone Zigbee Hub: Yes
- Zigbee/Thread to Ethernet: Available
- Zigbee/Thread to USB: Available
- Zigbee/Thread to Wi-Fi: Available
Compatibility
- Zigbee2MQTT native support: Yes
- ZHA native support: Yes
- OTBR Support Yes
- Pre-flashed Plug&Play: Yes
- Ethernet support: Yes, 10/100Mb
- Wi-Fi support: Yes, 2.4GHz
- Bluetooth ready: Yes
- SLZB-OS compatible: Yes
- Home Assistant integration: Yes
Features
- USB to Ethernet Passthrough Yes
- External 5dB antenna: Yes
- Internal Wi-Fi / Bluetooth antenna: Yes
- Radio SoC output gain: up to +20dB
- ESP32 Flasher integrated: Yes
- Radio SoC flasher inegrated Yes
- Status LEDs: Yes, 6
- Button for control: Yes
Dimensions and weight
- Adapter: 160x24x28mm, 86g
- Antenna: 192x12x12mm, 15g
- Packing (full): 180x25x40mm, 105g
Operating environment
- Temperature: +5 – +35°C
- Humidity: < 60%
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Instant Answers to Common Questions
This FAQ applies to all devices in the SLZB-06x/MRx series, including SLZB-06, SLZB-06M, SLZB-06P7, SLZB-06P10, SLZB-06Mg24, SLZB-06Mg26, SLZB-4G, SLZB-MR1, SLZB-MR2 and SLZB-MR3. For simplicity, we refer to them collectively as SLZB-06x/MRx series devices throughout this section.
They support various connection options like Ethernet, USB, Wi-Fi, and PoE, and come pre-configured and ready to use. Whether you want to control your devices locally, remotely, or even without a separate smart home server these adapters offer a reliable, flexible way to build and expand your smart home.
They come pre-flashed and tested, so you don’t need to worry about manual firmware installation.
Depending on the firmware variant, each device can function as a Zigbee coordinator, Zigbee router, or Matter-over-Thread device.
They support both ZHA and Zigbee2MQTT integrations, and can be connected via Ethernet or USB.
Home Assistant will detect them automatically after connection.
- Zigbee Coordinator – for managing a Zigbee network via ZHA or Zigbee2MQTT.
- Zigbee Router – to extend the range of an existing Zigbee network.
- Matter-over-Thread Border Router – to control your Matter devices over Thread network.
- Zigbee Hub Mode – direct control of Zigbee devices via built-in web interface (available only on TI-based models like SLZB-06, 06P7, 06P10).
You don’t need to change or configure anything when switching power sources. SLZB-06x/MRx series devices can be powered from either PoE (Power over Ethernet) or USB Type-C, and both can even be connected at the same time. Thanks to optoelectronic isolation, each power source is safely separated and protected from the other, ensuring reliable operation regardless of how you power the device.
- Via the device’s built-in web interface one-click feature;
- For Home Assistant users, directly via the official SMLIGHT SLZB integration.
No cables, no tools, no manual flashing - quick and reliable updates in seconds.
However, keep in mind that Wi-Fi, Zigbee, and Thread all operate in the 2.4 GHz band, which can lead to signal interference. While the setup is fully supported and functional, we recommend careful channel planning and proper placement to avoid wireless conflicts and ensure stable performance.
However, please note that Zigbee Hub mode is available only on devices based on TI Zigbee chips, such as SLZB-06, SLZB-06P7, and SLZB-06P10. This mode is ideal for small setups where you need basic control (e.g. switching devices, viewing sensors) without full automation. For advanced use cases, Home Assistant or Zigbee2MQTT integration is recommended.
To use this feature, you need to flash a special ESPHome-based Bluetooth Proxy firmware. This can be done directly from the built-in SLZB-OS web interface. However, please note that doing so will replace SLZB-OS, and the device will no longer function as a Zigbee or Thread adapter until SLZB-OS is flashed back - which can also be done at any time via the same web interface.
- A built-in web interface for setup, configuration, and one-click firmware updates
- Support for Zigbee Coordinator, Router, Zigbee Hub Mode, and Matter-over-Thread roles
- Integration with Home Assistant via ZHA, Zigbee2MQTT, or SMLIGHT’s native integration
- Optional features like PoE control, debug logging, and hardware diagnostics
Additionally, SMLIGHT provides an official open-source firmware for the core, which serves as a lightweight alternative to SLZB-OS. While it doesn’t offer the full feature set and polish of SLZB-OS, it’s a great starting point for customization and community contributions.

