Description

SLZB-Ultima 3 – Multi-radio Zigbee/Thread adapter with Ethernet, Wi-Fi, PoE/Z-Wave/UPS extensions and integrated peripherals (2× IR / audio / WS2812 / buzzer)

The SLZB-Ultima 3 is a professional multi-radio Zigbee/Thread adapter developed for system integrators, installers, and OEM partners who require high RF performance, extensive diagnostics, and advanced built-in peripherals for automation and development.

Equipped with 12× WS2812B RGB LEDs, audio output, IR receiver, IR transmitter, buzzer, 4× service LEDs and 3 buttons The Ultima offers significantly more functionality than a standard Zigbee/Thread adapter — making it suitable for both production automation and R&D environments.

Powered by SMLIGHT's SLZB-OS The SLZB-Ultima offers a unified web interface, radio tools, live logs, diagnostics, MQTT integration, and full OTA updates. Additionally, it supports ESPHome.

It multi-radio design makes it possible to Zigbee, Thread, Matter-related technologies and Z-Wave to use (depending on the add-ons), giving installers flexibility when deploying the adapter in multi-protocol smart home or commercial systems.

Product features

Octa-radio architecture

• Texas Instruments CC26XXPX (Zigbee/Thread compatible)

• Silicon Labs EFR32MGXX (Thread-compatible)

• Espresso ESP32-S3 (Wi-Fi, 2.4 GHz)

• Espresso ESP32-S3 (Bluetooth)

• Silicon Labs EFR32ZG23 (Z-Wave 800) via add-on

Connectivity and functionality

• USB passthrough mode (remote USB via LAN)

• Ethernet connectivity (100 Mbps) for stable and trouble-free operation

• PoE support (via add-on) for easier installations

• Runs on SLZB-OS with integrated management interface, logs, diagnostics, and OTA updates

• ESPHome compatible

• High transmit power (5 dB) of dual or quad external antennas (depending on add-ons) for greater range and better mesh performance

• Compatible with Zigbee2MQTT, OpenThread Border Router, Z-Wave JS UI, Home Assistant and other automation platforms

• Can function as stand-alone hub of Zigbee Hub Mode and the Berry scripting language for task automation

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

• MIC Add-on

Package contents

• SLZB-Ultima – 1 piece

• External antenna – 2 pieces

• QR link manual + screw aid – 1 piece

• Box – 1 piece