How is the Dongle-PMG24 different from the ZBDongle-E?

The chip: EFR32MG24 instead of EFR32MG21 — double the Flash (1536 KB), four times the RAM (256 KB) and lower standby consumption. It also gains an angle-adjustable antenna and a more compact aluminium-alloy housing.

Which firmware ships from the factory?

Zigbee 3.0 coordinator firmware on the EmberZNet stack — ready for Home Assistant (ZHA/Zigbee2MQTT), openHAB or ioBroker. The SONOFF Dongle Flasher web tool can switch it to Zigbee router, OpenThread RCP or MultiPAN RCP.

How do I add Thread and Matter support?

Flash the stick with OpenThread RCP via the Dongle Flasher and set up a Thread Border Router on your platform — Matter-over-Thread devices can then join. The dongle acts as the radio; the logic stays on your server.

Why did LQI drop after switching from a ZBDongle-E?

It is a trait of MG24-based adapters: they report lower LQI than MG21 ones. Sonoff's 150–450 m distance tests show command success rate and latency do not suffer — judge by real device response, not the LQI figure.

Can I run Zigbee and Thread at the same time?

Yes, the MultiPAN RCP firmware keeps both protocols on one radio. Bear in mind the airtime is shared, so under heavy load two separate sticks — the PMG24 on Zigbee and a second one on OpenThread — are more stable.

Is it controlled from the eWeLink app?

No — the dongle never shows up in the eWeLink cloud app; it is a coordinator for self-hosted platforms. The exception is eWeLink CUBE, Sonoff's local OS (iHost/PC), which uses the PMG24 as its Zigbee radio and Matter bridge.

What is the bundled USB extension cable for?

It moves the dongle away from the metal case of a mini-PC or NAS: interference is worst right at the USB 3.0 ports, and the 1 m cable noticeably improves reception without relocating your server.

Sonoff MG24 — Zigbee/Thread coordinator, Moldova

Name: Sonoff Dongle Plus MG24 Zigbee/Thread USB coordinator (Dongle-PMG24)
Brand: Sonoff
SKU: SONOFF-DONGLE-PMG24
Price: 999 MDL
Availability: InStock

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Compatibility

Works with these ecosystems

Protocols

Zigbee
Thread

Ecosystems

Home Assistant

What it is, who it's for, what it does

About this product

How many devices will your network hold in two years? With the Dongle-PMG24 the answer stops mattering: the EFR32MG24 chip carries 1536 KB Flash and 256 KB RAM — double and quadruple the MG21 generation — so the Zigbee mesh keeps growing on the same coordinator.<br><br>Out of the box it runs Zigbee 3.0 coordinator firmware (EmberZNet) for Home Assistant, Zigbee2MQTT, openHAB and ioBroker. The SONOFF Dongle Flasher web tool reflashes it in about a minute into OpenThread RCP for Matter over Thread, or into MultiPAN RCP — Zigbee and Thread side by side on one stick. A 3 dBi antenna (up to 4.5 dBi optimised), an aluminium-alloy housing and a bundled 1 m USB extension cable complete it.

Delivery
Delivery 50 MDL
Returns
14 days to return
Warranty
24 months

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CasaSmart essentials

What it works with, what it needs, what you can do

Verified compatibility

We test every device for these ecosystems. For non-standard integrations contact us before ordering.

Home Assistant
Zigbee
Matter
KNX
Wi-Fi

Install & requirements

What you need on your side and what we deliver.

Zigbee hub or Matter gateway for wireless variants
65 mm back-box or DIN panel for wired variants
Local setup on Home Assistant — included in install

Request install quote

Smart scenarios

Three typical automations we set up after the install.

01Morning: warm light + blinds up + climate at 22 °C
02Leaving: lights off, arm sensors, close the gas
03Evening: warm ambient + cinema scene

Where it works

Use cases

Home

In a three-room Chișinău flat the PMG24 starts in Home Assistant with ten sensors and scales to dozens of devices without a coordinator swap.

Home

Reflashing to OpenThread RCP via the Dongle Flasher turns it into a Thread Border Router radio — Matter devices join with no new hardware.

Home

The adjustable 3 dBi antenna and the 1 m USB extension pull the stick out from behind a NAS and improve reception in concrete apartment blocks.

Analytics

See consumption — save on bills

Real-time consumption tracking via the eWeLink app. Daily, weekly and monthly history helps identify the most energy-hungry devices.

For the installer

Technical specifications

full spec · wiring · datasheet

Wireless

Chip (SoC): Silicon Labs EFR32MG24
Memory: 1536 KB Flash / 256 KB RAM
Out-of-the-box protocol: Zigbee 3.0, coordinator (EmberZNet)
Alternative firmware: Zigbee router, OpenThread RCP, MultiPAN RCP
Standard: IEEE 802.15.4
RF frequency: 2.4 GHz
Antenna: external 3 dBi, adjustable (effectively up to 4.5 dBi)
Range: up to 200 m
Signal power: max. 20 dBm + 3 dBi antenna

Connectivity

USB-serial chip: CP2102(N)
OS: Windows, Ubuntu, Raspberry Pi OS / Raspbian, Docker

Power

Power: 5V⎓500mA, USB
Idle consumption: 40 mW

Physical

Housing: aluminum alloy, 24 h salt spray test
Dimensions (with antenna): 18 × 10.5 × 214 mm

Environment

Operating temperature: −10…+40 °C
Humidity: 5–95% RH

Other

Included: USB extension cable 1 m, quick guide

Full device datasheet

Support

Frequently asked questions

How is the Dongle-PMG24 different from the ZBDongle-E?
The chip: EFR32MG24 instead of EFR32MG21 — double the Flash (1536 KB), four times the RAM (256 KB) and lower standby consumption. It also gains an angle-adjustable antenna and a more compact aluminium-alloy housing.
Which firmware ships from the factory?
Zigbee 3.0 coordinator firmware on the EmberZNet stack — ready for Home Assistant (ZHA/Zigbee2MQTT), openHAB or ioBroker. The SONOFF Dongle Flasher web tool can switch it to Zigbee router, OpenThread RCP or MultiPAN RCP.
How do I add Thread and Matter support?
Flash the stick with OpenThread RCP via the Dongle Flasher and set up a Thread Border Router on your platform — Matter-over-Thread devices can then join. The dongle acts as the radio; the logic stays on your server.
Why did LQI drop after switching from a ZBDongle-E?
It is a trait of MG24-based adapters: they report lower LQI than MG21 ones. Sonoff's 150–450 m distance tests show command success rate and latency do not suffer — judge by real device response, not the LQI figure.
Can I run Zigbee and Thread at the same time?
Yes, the MultiPAN RCP firmware keeps both protocols on one radio. Bear in mind the airtime is shared, so under heavy load two separate sticks — the PMG24 on Zigbee and a second one on OpenThread — are more stable.
Is it controlled from the eWeLink app?
No — the dongle never shows up in the eWeLink cloud app; it is a coordinator for self-hosted platforms. The exception is eWeLink CUBE, Sonoff's local OS (iHost/PC), which uses the PMG24 as its Zigbee radio and Matter bridge.
What is the bundled USB extension cable for?
It moves the dongle away from the metal case of a mini-PC or NAS: interference is worst right at the USB 3.0 ports, and the 1 m cable noticeably improves reception without relocating your server.

Same ecosystem

Works together

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Same category

Questions about this product?

A CasaSmart manager calls you within 1–2 working hours and answers anything — compatibility, install, alternatives.

+373 60 944 922

Updated: 13 June 2026· reviewed by CasaSmart Expert Team

Compatibility