SMLight SLZB-MR1U — Zigbee & Matter-over-Thread Gateway with PoE, Ethernet/USB/Wi-Fi
Short description
SLZB-MR1U is a versatile Zigbee 3.0 and Matter-over-Thread gateway that connects via Ethernet (10/100), Wi-Fi 2.4 GHz, or USB-C and can be powered by PoE (802.3af). It’s pre-flashed and ready for Home Assistant (ZHA) and Zigbee2MQTT, with an external +5 dBi antenna and +20 dB radio output for long-range, reliable coverage.
Long description
The SMLight SLZB-MR1U is built for stable, high-range smart-home networks. Run it as a Zigbee 3.0 coordinator or router, or switch to Matter-over-Thread router mode—directly from the web UI or the physical button. Thanks to Power-over-Ethernet you can place the gateway in the best possible spot without extra power cabling. Under the hood, a TI CC2652P radio handles Zigbee/Thread, while an ESP32-D0WD manages connectivity and features like remote updates, mode switching, and an integrated USB flasher with auto-boot. It works great with Home Assistant (ZHA) and Zigbee2MQTT, and supports devices from major brands such as Aqara, IKEA, Philips Hue, Sonoff, and Tuya.
Highlights
Zigbee 3.0 & Matter-over-Thread — coordinator/router modes, switchable in one click
Flexible connectivity — use as an adapter to Ethernet, Wi-Fi, or USB
PoE (802.3af) — power directly via Ethernet for cleaner installs
Pre-flashed — plug-and-play with Zigbee2MQTT and Home Assistant (ZHA)
Long range — +20 dB radio output and external +5 dBi antenna
User-friendly — 4 status LEDs, mode button, remote firmware updates
Technical specifications
Chipsets & radio
Radio SoC: Texas Instruments CC2652P
System controller: Espressif ESP32-D0WD (dual-core 240 MHz)
USB/UART bridge: Silicon Labs CP2102N
Ethernet PHY: Microchip LAN8720
Antenna: External L-/I-shaped +5 dBi (Baishi), internal Wi-Fi/BLE antenna
Radio output gain: up to +20 dB
Power & data
USB-C (data/ power)
PoE: IEEE 802.3af (48 V)
Typical consumption: 1.5–3 W
Network: Ethernet 10/100, Wi-Fi 2.4 GHz, Bluetooth-ready
Operating modes
Zigbee 3.0 coordinator (Zigbee2MQTT / ZHA)
Zigbee router
Matter-over-Thread router
Standalone Zigbee hub
Zigbee/Thread to Ethernet / USB / Wi-Fi
Firmware & convenience
Pre-flashed, SLZB-OS compatible
ESP32 flasher integrated, Autoboot via DTR/RTS
4× status LEDs, physical mode button
Dimensions & weight
Adapter: 160 × 24 × 28 mm, 86 g
Antenna: 192 × 12 × 12 mm, 15 g
Package: 180 × 25 × 40 mm, 105 g
Environment
Operating temperature: +5 — +35 °C
Humidity: