Is the SONOFF Zigbee 3.0 USB Dongle Plus-E worth it?
The SONOFF Zigbee 3.0 USB Dongle Plus-E is a top pick with a 8.7/10 consensus score. Experts highlight silicon labs efr32mg21 chipset with +20 dbm output — strongest signal in its price class and external antenna provides extended range over onboard-antenna coordinators like skyconnect. Best for: Home Assistant users building a local-first Zigbee mesh, DIY smart home tinkerers who want maximum chipset quality per dollar, Homes with 50+ Zigbee devices needing a robust coordinator with headroom.
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SONOFF Zigbee 3.0 USB Dongle Plus-E
Automation
Expert consensus
How we scoreKey Features
- ✓ Silicon Labs EFR32MG21 chipset
- ✓ +20 dBm transmit power
- ✓ External antenna (SMA connector)
- ✓ Pre-flashed EmberZNet firmware
- ✓ USB 2.0 interface (CP2102N UART bridge)
- ✓ ZHA, Zigbee2MQTT, and openHAB support
Best For
What Experts Agree On
What Experts Love
- ✓ Silicon Labs EFR32MG21 chipset with +20 dBm output — strongest signal in its price class
- ✓ External antenna provides extended range over onboard-antenna coordinators like SkyConnect
- ✓ Pre-flashed EmberZNet firmware works out-of-box with Home Assistant ZHA
- ✓ Universally supported by ZHA, Zigbee2MQTT, and openHAB — no vendor lock-in
- ✓ Under $30 makes it the category-defining price-performance pick for DIY smart homes
Common Criticisms
- ✗ USB stick form factor means it must plug directly into the Home Assistant host
- ✗ No PoE or Ethernet option — place the HA server near where you want the mesh to originate
- ✗ Firmware updates are manual (flasher tool + serial cable)
- ✗ Community consensus is to isolate it from USB 3.0 ports with a short extension cable to avoid interference
Frequently Asked Questions
Is the SONOFF Zigbee 3.0 USB Dongle Plus-E worth it?
The SONOFF Zigbee 3.0 USB Dongle Plus-E earns a 8.7/10 consensus score and is rated "Must Buy". At $24.90, it is best for Home Assistant users building a local-first Zigbee mesh. It ranks among the top picks in its category.
How much does the SONOFF Zigbee 3.0 USB Dongle Plus-E cost?
The SONOFF Zigbee 3.0 USB Dongle Plus-E is priced at $24.90. With a 8.7/10 score and a "Must Buy" rating, that price represents strong value relative to the ~7.5/10 average for Automation products. Prices shift often, so check the live figure before buying.
Who is the SONOFF Zigbee 3.0 USB Dongle Plus-E best for?
The SONOFF Zigbee 3.0 USB Dongle Plus-E is best for Home Assistant users building a local-first Zigbee mesh, DIY smart home tinkerers who want maximum chipset quality per dollar, Homes with 50+ Zigbee devices needing a robust coordinator with headroom. Experts rate it "Must Buy" with a 8.7/10 consensus.
How does the SONOFF Zigbee 3.0 USB Dongle Plus-E compare to other Automation options?
Among the Automation products we have aggregated, the SONOFF Zigbee 3.0 USB Dongle Plus-E ranks above average with a 8.7/10 score. See our full category comparison for head-to-head details.
What are the best alternatives to the SONOFF Zigbee 3.0 USB Dongle Plus-E?
If the SONOFF Zigbee 3.0 USB Dongle Plus-E ($24.90, 8.7/10) is not the right fit, the closest alternatives in Automation are SMLIGHT SLZB-06, Hubitat Elevation C-8 Pro. Compare them on price, ecosystem support, and expert consensus to find your match.
What are the pros and cons of the SONOFF Zigbee 3.0 USB Dongle Plus-E?
The main strengths of the SONOFF Zigbee 3.0 USB Dongle Plus-E are silicon labs efr32mg21 chipset with +20 dbm output — strongest signal in its price class and external antenna provides extended range over onboard-antenna coordinators like skyconnect. The most-cited downside is usb stick form factor means it must plug directly into the home assistant host. Overall, experts rate it "Must Buy" with a 8.7/10 consensus score.
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Sources & Methodology
Consensus score based on available data. See how we build consensus scores.
Affiliate disclosure: SmartHomeExplorer.com participates in the Amazon Associates program. We earn a commission from qualifying purchases at no extra cost to you.This is a consensus review — we did not test this product ourselves. Always verify current prices and availability before purchasing.
Independence notice: Smart Home Explorer is an independent publication. SONOFF and other product names, logos, and brands referenced on this page are the property of their respective owners and are used for identification purposes only. This review is not sponsored by, affiliated with, or endorsed by SONOFF or any other manufacturer named in this article.