SLZB-Ultima 3 – Multi-Radio Zigbee/Thread Adapter with Ethernet, Wi-Fi, PoE/Z-Wave/UPS Add-ons & Integrated Peripherals 2xIR/audio/WS2812/Buzzer
The SLZB-Ultima 3 is a professional multi-radio Zigbee/Thread adapter engineered for system integrators, installers, and OEM partners who need high RF performance, robust 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 provides functionality far beyond a typical Zigbee/Thread adapter — making it equally suitable for production automation as well as R&D environments.
Powered by SMLIGHT’s SLZB-OS, SLZB-Ultima offers a unified web interface, radio tools, live logs, diagnostics, MQTT integration, and full OTA updates. Also supports ESPHome.
Its multi-radio design enables the use of Zigbee, Thread, Matter-related technologies, and Z-Wav,e depending on addons, giving installers the flexibility to deploy the adapter in multi-protocol smart-home or commercial systems.
SLZB-Ultima Series overview:
| Feature | SLZB-Ultima1 | SLZB-Ultima2 | SLZB-Ultima3 | SLZB-Ultima4 |
|---|---|---|---|---|
| Radio 1 | CC2652P7 | CC2652P1 | CC2674P10 | CC2674P10 |
| Radio 2 | EFR32MG21 | EFR32MG21 | EFR32MG24 | EFR32MG26 |
Product Highlights:
- Octa-radio architecture:
- Texas Instruments CC26XXPX (Zigbee/Thread capable)
- Silicon Labs EFR32MGXX (Thread/Thread capable)
- Espressif ESP32-S3 (Wi-Fi, 2.4Ghz)
- Espressif ESP32-S3 (Bluetooth)
- Silicon Labs EFR32ZG23 (Z-Wave 800) via add-on.
- USB Passthrough Mode (remote USB over LAN)
- Ethernet connectivity (100 Mbps) for stable and interference-free operation
- PoE support (with an addon) for simplified installations
- Runs SLZB-OS with integrated management UI, logs, diagnostics, and OTA updates
- Esphome compatible
- High output power 5dB dual or quad (with addons) external antennas for extended coverage and improved mesh performance
- Compatible with Zigbee2MQTT, OpenThread Border Router, Z-Wave JS UI, Home Assistant, and major automation platforms
- It can function as a standalone hub with integrated Zigbee Hub Mode and Berry scripting language for automating tasks.
- 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
- MIC Add-on
- UPS Add-on
Packing:
- Paperbox
Packing content:
- SLZB-Ultima – 1 pcs
- External antenna – 2 pcs
- QR-link manual + screw helper – 1 pcs
- Paperbox – 1 pcs
