SMLIGHT SLZB-MR3 Zigbee & Thread Coordinator | Ethernet & USB | CC2674P10 + EFR32MG24

SMLIGHT SLZB-MR3 Zigbee & Matter Coordinator (LAN | USB | Wi-Fi)

Future-proof your smart home with native Zigbee and Thread support in one compact unit. The SLZB‑MR3 features dual-chip architecture, PoE/Ethernet or USB connectivity, and seamless compatibility with Zigbee2MQTT, ZHA, and Matter.

Introducing the SLZB‑MR3 — the latest addition to SMLIGHT’s MultiRadio series. With robust dual-radio capability, this model integrates both the Texas Instruments CC2674P10 and Silicon Labs EFR32MG24 chips. Enjoy full duplex compatibility with Zigbee 3.0, Thread, and Matter, all in a single device.

Why Choose SLZB‑MR3?

• Cutting-edge dual chipset: CC2674P10 + EFR32MG24 for high power (+20 dBm TX), Zigbee and Thread support 

• Multi‑ecosystem ready: Smooth integration with Zigbee2MQTT, Home Assistant ZHA, and Matter-over-Thread 

• Flexible connectivity & power: Use Ethernet with PoE, or USB‑C for data/power

• Built to last: Durable ABS casing, DIN‑rail/wall/adhesive mounting options, and optically isolated USB/Ethernet ports

• OTA firmware updates: Update Zigbee and ESP32 systems easily via web interface—no physical access needed

• User‑friendly features: 6 status LEDs, a mode-switch button, ESP32 autoboot for streamlined flashing

Key Features:

• Dual-radio support (Zigbee + Thread concurrently)
  Zigbee 3.0, Thread (Matter) compatibility
• Connectivity: Ethernet + PoE, USB‑C
• Advanced chipsets: CC2674P10 & EFR32MG24, both +20 dBm power
• Mounting versatility: Wall, DIN‑rail, or 3M tape
• OTA updates and remote mode switching
• Multi‑LED indicators, mode button, and autoboot for developers

Whether you're building a Zigbee mesh, experimenting with Thread-based devices, or diving into Matter, the SLZB-MR2 offers best-in-class performance, connectivity, and freedom — all in one compact powerhouse.

Compatible with all major smart home ecosystems:

• Works with Home Assistant

• Works with Zigbee2MQTT

• Works with ZHA

Key Features

Dual-Radio Support – Zigbee and Thread at the Same Time
Thanks to the advanced capabilities of the EFR32MG24, the SLZB-MR3 can operate both Zigbee and Thread protocols simultaneously, allowing for mixed-network environments and future-proof integration with Matter devices without sacrificing your existing Zigbee network.

Multi-Mode Connectivity
Use LAN, USB, or Wi-Fi depending on your preferred setup. Flexibility to suit both hobbyist and professional installations.

Power Options: PoE or USB
Power the device with either Power-over-Ethernet (PoE) or micro-USB. A micro-USB to USB-C adapter is included for maximum compatibility.

Pre-Flashed and Ready to Use
No need to flash firmware. It’s pre-configured for use with Home Assistant, Zigbee2MQTT, or ZHA, and supports automatic OTA (Over-The-Air) firmware updates for both Zigbee and core components.

High-Performance Hardware
Equipped with a +20 dBm amplifier and 5 dBi antenna for extended range and network reliability.

Secure Networking
Includes VPN tunneling support with Home Assistant, a secure password-protected web interface, and built-in whitelist firewall functionality.

Multi-Coordinator Support
Use multiple SLZB-MR1 devices across buildings or larger properties. Integrates smoothly with Zigbee2MQTT and Home Assistant for distributed and scalable smart home networks.

Multi-Language Interface
Web-based interface with support for 15 languages.

LED Status Indicator
Onboard LED for diagnostics and visual feedback, with control options.

Compact and Discreet Design
Just 106 x 22 x 24 mm – small enough to tuck behind panels or blend into your setup.

What’s Included

• 1x SMLIGHT SLZB-MR3 Zigbee/Matter Coordinator

• 2x 5 dBi External Antenna

• 1x Micro-USB to USB-C Adapter

• 1x Quick Start Guide with QR Code

• 2x Adhesive Mounting Pads

The SLZB-MR3 is the ideal choice for anyone building a modern smart home. With dual-protocol support, future-ready Matter integration, and robust connectivity options, it’s a serious tool for users who want total control over their setup.