Connect ZBT-2 is the first party Zigbee and Thread radio for Home Assistant. It is a tuned antenna on a weighted base rather than a USB stick, so the radio sits away from the hub and its interference instead of on top of it.
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.
Silicon Labs MG24 radio behind an ESP32-S3 USB to serial bridge, at four times the ZBT-1 link speed.
Zigbee runs through ZHA. Thread runs the OpenThread Border Router that Matter over Thread devices then join. Where a design needs a Zigbee mesh and a Thread border router together, specify two of these, or an SLZB-MR3U to get both from one device.
The antenna ships on its own weighted base with a 1.5m USB-C cable, and that cable is the point: keep it off the rack and away from USB 3 ports and Wi-Fi access points, which is where most Zigbee range complaints actually come from.
Home Assistant handles the migration from a ZBT-1 or SkyConnect, and the over the air firmware updates. Indoor only.
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