SLZB-07Mg24
SMLIGHT's Silicon Labs EFR32MG24 USB stick. It runs as a Zigbee coordinator on ZHA or Zigbee2MQTT, or carries Thread firmware for a Matter-over-Thread border router, one protocol at a time.
A Silicon Labs EFR32MG24 radio with a +20 dB amplifier behind a CP2102N USB to serial bridge, on an 18mm by 54mm by 10mm stick with a rotatable +3 dB external antenna.
It ships pre-flashed for Zigbee 3.0 on ZHA or Zigbee2MQTT, and reflashes over USB to Thread 1.3 firmware for an OpenThread border router that Matter-over-Thread devices join. One protocol at a time: where a design needs a Zigbee mesh and a Thread border router together, specify two sticks or an SLZB-MR3U.
Give it a short USB 2.0 extension cable to clear USB 3.0 ports and SSDs, whose 2.4 GHz noise cripples Zigbee and Thread.
For a Zigbee-only install the Texas Instruments SLZB-07p7 has the longer Zigbee track record in Home Assistant.
One mode at a time: the device serves one of these combinations, not all of them at once. A design that needs two of them together needs two adapters.
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