Zigbee 3.0 USB Dongle Plus-E (ZBDongle-E) Kit with 1.5m Shielded Extension Cable | Solves USB 3.0 Interference | EFR32MG21 Coordinator +20dBm for Home Assistant (ZHA), Zigbee2MQTT & Local Hub

ELIMINATE USB 3.0 INTERFERENCE & SIGNAL DROPOUTS: Stop unstable connections on your Raspberry Pi or Mini PC. High-speed USB 3.0 ports generate noise that jams 2.4GHz Zigbee signals. This Zigbee 3.0 USB Dongle Plus-E Pro Kit includes a 1.5m (Approx. 5ft) shielded USB extension cable. By physically separating the dongle from noise sources. It is the essential solution for a rock-solid Home Assistant network, perfect for users migrating from cloud hubs to local control.
HIGH-POWER ZIGBEE NETWORK EXTENDER & REPEATER: Go beyond a standard coordinator. While pre-configured as a gateway, this device can be flashed with router firmware to become a professional-grade Zigbee Network Extender. The included cable allows you to mount the dongle high up for maximum Line-of-Sight, while the EFR32MG21 chip delivers a massive +20dBm output. It punches signals through thick concrete walls, eliminating dead zones in garages, basements, or backyards.
MAXIMUM RANGE WITH SILICON LABS EFR32MG21: Experience wall-penetrating performance. Built on the industry-leading EFR32MG21 (Series 2) chip, this ZBDongle-E gateway significantly outperforms older CC2531 units. The rotatable external SMA antenna and aluminum alloy shell (for superior cooling and interference shielding) ensure reliable coverage for up to 40 direct child devices and 100+ sub-devices, ideal for large, multi-story homes.