SLZB-MR5U Zigbee and Thread Adapter

Build a More Flexible Smart Home Network Without Being Limited by Your Server

Run Zigbee and Thread simultaneously with the SMLIGHT SLZB-MR5U, a powerful Zigbee and Thread adapter designed for Home Assistant, Zigbee2MQTT, ZHA, and Matter-over-Thread setups.

✔ Dual EFR32MG24 Radio Chips
✔ Simultaneous Zigbee & Thread Support
✔ ESP32-S3 Main Controller
✔ Ethernet, Wi-Fi, USB & PoE Connectivity
✔ Zigbee 3.0 Coordinator & Router Modes
✔ USB-to-TCP/IP Support
✔ Pre-Flashed & Ready to Configure

Built for smart home enthusiasts, Home Assistant users, advanced DIY automation, and professional installations that need reliable connectivity, flexible coordinator placement, and room to expand.

Powerful Multi-Radio Technology, Built for Modern Smart Homes

Running a growing smart home network can become complicated when your coordinator is restricted to a single wireless protocol or has to remain beside your server.

The SMLIGHT SLZB-MR5U solves this with two dedicated EFR32MG24 radio chips, allowing Zigbee and Thread networks to operate simultaneously on separate radios. This gives you the flexibility to keep your existing Zigbee devices while building a modern Thread and Matter-over-Thread network.

Its Ethernet-first design also lets you position the Zigbee coordinator where your wireless network needs it most—not simply where your Home Assistant server happens to be located.

Whether you're expanding a Home Assistant installation, running Zigbee2MQTT or ZHA, connecting hundreds of smart devices, or moving toward Matter over Thread, the SLZB-MR5U gives your automation system a powerful and flexible foundation.

Why Choose the SMLIGHT SLZB-MR5U?

Choosing a smart home coordinator is about more than simply connecting devices. Network flexibility, protocol support, installation options, firmware management, and long-term expandability all matter.

The SLZB-MR5U combines:

Dual EFR32MG24 radios for simultaneous Zigbee and Thread operation

ESP32-S3 processing for SLZB-OS, USB passthrough, web configuration, and firmware management

Ethernet, Wi-Fi, USB-C and PoE connectivity for flexible installation

Zigbee 3.0 Coordinator and Router modes for different network configurations

Matter-over-Thread support for modern smart home deployments

USB-to-TCP/IP functionality for sharing compatible USB devices over your network

Every part of the SLZB-MR5U is designed around one goal: giving you more control over where and how your smart home network operates.

Why SLZB-MR5U Compared to a Standard Zigbee Adapter

The Difference You Notice Immediately

 Run Zigbee and Thread at the Same Time

The two EFR32MG24 radios allow separate Zigbee and Thread networks to operate concurrently, making it easier to combine existing Zigbee devices with newer Thread-based technology.

 Place Your Coordinator Where Coverage Matters

Connect over Ethernet or Wi-Fi and position the adapter strategically instead of keeping your Zigbee coordinator directly beside your Home Assistant server.

 Build Around Home Assistant

Designed for popular open smart home platforms including Home Assistant, Zigbee2MQTT, ZHA, and OpenThread, giving you greater control over your automation environment.

 Prepare for Matter Over Thread

Use the SLZB-MR5U as part of a modern Thread and Matter setup while continuing to operate your existing Zigbee network.

 Expand Your Smart Home Infrastructure

With support for large Zigbee deployments and the ability to add multiple coordinators across larger areas, the SLZB-MR5U is suited to growing smart home systems.

Premium Features

How to Use the SLZB-MR5U

Using the SMLIGHT SLZB-MR5U Zigbee and Thread adapter is straightforward:

1. Connect the adapter using Ethernet, Wi-Fi, USB-C, or compatible PoE.

2. Position the coordinator in a suitable location for your Zigbee and Thread network.

3. Access the device interface to configure your network and preferred operating settings.

4. Connect it to your smart home platform such as Home Assistant, Zigbee2MQTT, ZHA, or OpenThread.

5. Pair your compatible Zigbee and Thread devices with the appropriate network.

6. Manage firmware and configuration through the network connection when required.

The SLZB-MR5U ships pre-flashed, helping you get started without unnecessary setup complexity.

Who Is It For?

The SLZB-MR5U Zigbee and Thread Adapter is ideal for:

Home Assistant users

Zigbee2MQTT users

ZHA users

Smart home enthusiasts

Matter and Thread adopters

DIY home automation builders

Large Zigbee network installations

Professional smart home installers

Users upgrading from a single-radio Zigbee coordinator

If you are building a smart home that needs Zigbee today and Thread tomorrow—or both at the same time—the SLZB-MR5U gives you the hardware flexibility to do it from one compact platform.

Delivery Information

Orders are processed through Dialedin Australia, with local support available for SMLIGHT products.

Processing time: 1–3 business days, Monday–Friday, excluding public holidays.

Standard shipping: $10 flat rate.

Express shipping: $15 flat rate.

Free standard shipping: Orders over $129 within Australia & New Zealand.

International shipping: Rates calculated at checkout.

Same-day dispatch: Orders placed before 2pm AEST Monday–Friday qualify for same-day dispatch via Express shipping.

Delivery and shipping conditions are subject to the store's current shipping policy.

Warranty

The SLZB-MR5U includes a 12-month warranty against manufacturing defects and failure.

Warranty coverage is subject to the manufacturer's and retailer's applicable warranty conditions. Consumables are excluded.

For warranty assessment, contact Dialedin support with the required product and purchase information.

Specifications

Specifications reflect the current SMLIGHT product information; the current manufacturer page lists the MR5U with dual EFR32MG24 radios, ESP32-S3, W5500 Ethernet, PoE, simultaneous Zigbee/Thread operation, and Matter-over-Thread support.

Frequently Asked Questions

Can the SLZB-MR5U run Zigbee and Thread simultaneously?

Yes. The SLZB-MR5U uses two EFR32MG24 radio chips, allowing Zigbee and Thread networks to operate concurrently on separate radios.

Does the SLZB-MR5U work with Home Assistant?

Yes. It is designed for smart home platforms and software including Home Assistant, Zigbee2MQTT, ZHA, and OpenThread.

Does it support Matter over Thread?

Yes. The SLZB-MR5U supports Thread and Matter-over-Thread applications, making it suitable for modern smart home installations.

Can I connect it through Ethernet?

Yes. Ethernet is supported, allowing the coordinator to be positioned away from your Home Assistant server or host computer.

Does the SLZB-MR5U support PoE?

Yes. The device supports IEEE 802.3af PoE, allowing compatible Ethernet installations to provide network connectivity and power.

Can I use USB devices through the network?

Yes. The ESP32-S3 platform supports USB-to-TCP/IP functionality, allowing compatible USB devices to be shared over the LAN connection.

Does it arrive pre-flashed?

Yes. The SLZB-MR5U is supplied with pre-flashed firmware, making initial setup simpler.

Is the SLZB-MR5U suitable for a large Zigbee network?

Yes. The adapter is designed for scalable smart home deployments, and the retailer states that each SLZB-MR5U can support up to 400 Zigbee devices.

Build a Smarter, More Flexible Home Automation Network

Stop letting your smart home infrastructure dictate how your network is built.

The SMLIGHT SLZB-MR5U Zigbee and Thread Adapter combines dual EFR32MG24 radios, simultaneous Zigbee and Thread support, Ethernet, Wi-Fi, USB, PoE, ESP32-S3 processing, and compatibility with Home Assistant, Zigbee2MQTT, ZHA, and Matter-over-Thread in one compact coordinator.

Whether you're expanding an existing Zigbee network or building a future-ready Thread and Matter smart home, the SLZB-MR5U gives you the flexibility, connectivity, and control to build your system properly from the start.

Upgrade your smart home network with the SMLIGHT SLZB-MR5U and take control of how your Zigbee and Thread devices connect, communicate, and grow.