Perfect for Home Assistant users: easy connection with Zigbee and future support for Matter specifications via firmware update. High-performance, low-power, and secure solution powered by EFR32MG21 Wireless SoC. 2.4GHz multi-protocol USB transceiver supports full-speed USB 2.0 when used with the included USB extender. Delivers reliable communication with +20 dBm transmit power. Supports dual-protocol operation (Zigbee, Matter). Features Over-The-Wire (OTW) firmware update support for consistent updates. Specifications: Power Supply: 5V DC / up to 150mA USB: v2.0 full speed (12Mbps) Bridge: USB to UART, Silabs CP2102N Transceiver: Silabs EFR32MG21 Frequency: 2.4GHz Antenna: PCB TX Power: up to +20dBm RX Sensitivity: -104dBm (250kbps) Protocols: Zigbee, Matter, Thread Stack: EmberZNet Serial Protocol (EZSP) Color: As shown Material: ABS Package Contents: 1 x USB Stick Note: Light reflection and different displays may cause slight color variations between the image and the actual item. Measurement may vary by +/- 1-3cm.