© 2025 Zigbee Smart.
Zigbee LAN PoE Coordinator SMLIGHT SLZB-Ultima 3 Multiradio
Compatible with




FREE UK Shipping
Order within the next
hours minutes
for next working day dispatch.

- Compatible with Home Assistant
- Compatible with Zigbee2MQTT
- Compatible with ZHA
- Supports Matter-over-Thread
- Supports Z-Wave (via add-on)
- Built with dual radio chips (CC2674P10 + EFR32MG24)
The SMLIGHT SLZB-Ultima 3 is a professional-grade multi-radio Zigbee and Thread adapter designed for system integrators, installers, and advanced smart home users.
Built for high-performance environments, the Ultima 3 combines powerful radio hardware, advanced diagnostics, and integrated peripherals into a single device, making it suitable for both production smart home deployments and development environments.
With its dual-radio architecture (CC2674P10 for Zigbee and EFR32MG24 for Thread), the SLZB-Ultima 3 enables simultaneous Zigbee and Matter-over-Thread operation, allowing flexible and future-ready smart home configurations.
The device runs on SMLIGHT’s SLZB-OS, providing a unified web interface with live logs, diagnostics, OTA updates, and built-in tools for advanced configuration and automation. It also supports ESPHome for extended customisation.
This TCP/IP coordinator enables control of Zigbee devices via Zigbee2MQTT, while also supporting Thread-based Matter devices and additional protocols through its expansion system.
The SLZB-Ultima 3 includes USB passthrough over network (TCP/IP), allowing additional USB devices such as Z-Wave or other radio adapters to be connected and accessed remotely over Ethernet or Wi-Fi.
It supports Ethernet connectivity for stable operation, with optional Power over Ethernet (PoE) via add-on, and also includes Wi-Fi and USB connectivity for flexible deployment.
Product Highlights
-
Dual-radio Zigbee + Thread operation
-
USB passthrough over Ethernet (TCP/IP)
-
Ethernet (LAN), Wi-Fi, and USB connectivity
-
PoE support (via add-on)
-
SLZB-OS web interface with diagnostics, logs, and OTA updates
-
ESPHome compatibility
-
High-output external antennas for extended coverage
-
Compatible with Zigbee2MQTT, OpenThread, Z-Wave JS UI, and Home Assistant
Integrated Peripherals
-
12 × WS2812B addressable RGB LEDs
-
4 × service LEDs
-
Audio output
-
IR receiver
-
IR transmitter
-
Buzzer
-
3 × programmable buttons
Expansion Ecosystem
-
PoE add-on
-
Z-Wave 800 add-on
-
Microphone add-on
-
UPS add-on
Connectivity & Radios
-
CC2674P10 (Zigbee)
-
EFR32MG24 (Thread / Matter)
-
ESP32-S3 Wi-Fi (2.4GHz)
-
ESP32-S3 Bluetooth
-
Optional Z-Wave (EFR32ZG23 via add-on)
-
Ethernet (100 Mbps)
System Features
-
SLZB-OS with web interface
-
Live logs and diagnostics tools
-
OTA updates for firmware and system
-
MQTT integration
-
Standalone operation with Zigbee hub mode
-
Berry scripting support for automation
Package Includes
SMLIGHT SLZB-Ultima 3 Adapter
2 × External Antennas
QR Code Manual
Retail Packaging
We dispatch all orders quickly and securely from the United Kingdom.
United Kingdom
FREE Standard Delivery
- Royal Mail Next Day – £2.50
- DPD Next Day – £7.50
Orders are typically dispatched within 1 working day.
Next-day services apply to orders placed before the daily cut-off time.
European Union
- Standard International – £4.00
Estimated delivery: 2–11 business days
International (Rest of World)
- Standard International – £9.00
Estimated delivery: 3–17 business days
Returns
We offer a straightforward returns policy for your peace of mind.
Returns are accepted within 30 days of delivery.
Items must be unused and in their original packaging.
Customers are responsible for return postage unless the item is faulty or incorrect.
If you need to arrange a return, please contact our support team with your order number and reason for return, and we will provide instructions.
Zigbee technology offers several advantages for smart home enthusiasts:
Interoperability: Zigbee devices from different manufacturers can communicate with each other, giving you more options when building your smart home ecosystem.
Low Power Consumption: Zigbee devices are designed to be energy-efficient, helping you reduce your carbon footprint and save on energy costs.
Local Control: With Zigbee, your smart home data stays local, ensuring privacy and security without relying on cloud services.
At ZigbeeSmart, we're committed to providing top-quality Zigbee products and exceptional customer service. With our easy-to-use website, secure payment options, and fast shipping, you can shop with confidence and start enjoying the benefits of a smarter home in no time.
The compatibility logos displayed alongside this product indicate the smart home platforms and ecosystems it has been tested to work with.
At Zigbee Smart, we independently test every product we sell to confirm reliable pairing, stable connectivity, and correct feature support within the listed platforms. We do not rely solely on manufacturer claims — each compatibility badge reflects real-world verification by our team.
If a platform logo appears next to this product, it means:
The device has been successfully integrated and tested
Core features operate as expected within that system
The product meets our performance standards
Please note that compatibility may depend on hub models, firmware versions, and platform updates. For best results, ensure your system is running the latest software.
If you’re unsure whether this device will work with your setup, our team is always happy to help.