The BRP072C42 is Daikin's own WiFi adapter for selected wall-mounted splits. Faikin is an independent module that plugs into the same style of port. Both live inside the indoor unit; the differences are price, model coverage and how much control you keep.
Quick answer: the BRP072C42 is the official accessory, but it fits only a narrow band of models (US7, and Cora and Alira 8.5 to 9.5 kW), costs around AUD $215 to $247, and uses Daikin's dated D-Mobile app. Faikin costs AUD $97.90 with a cable, GST included, covers a far wider range of Daikin units through interchangeable cables, and gives you local control with MQTT and Home Assistant built in. Unless you specifically want the genuine Daikin part, the Faikin does more for less.
The model coverage problem
Daikin segments its WiFi adapters by model line. The BRP072C42 suits the US7 and the larger 8.5 to 9.5 kW Cora and Alira splits. Smaller Coras and Aliras, newer XL models, and ducted systems each need a different adapter (BRP084C44, BRP15B61 and others), and some newer models ship with WiFi built in. Before buying, you must match the exact adapter to your exact model.
Faikin handles this differently: one module, different cables. The cable is matched to your indoor unit's port and protocol, and the compatibility database tells you which cable your model number needs. If the kit does not fit, return it for a full refund.
Side by side
| Faikin (module + cable kit) | Daikin BRP072C42 | |
|---|---|---|
| Price | AUD $97.90 incl. GST, free shipping ($89 outside Australia, plus any local taxes) | AUD $215-$247 at Australian retailers |
| Made by | Independent, open source firmware | Daikin (genuine accessory) |
| Model coverage | Wide, via model-matched cables | US7, Cora/Alira 8.5-9.5 kW only |
| App | Local web interface, any browser | D-Mobile app (iOS/Android) |
| Cloud required | No | App control works locally; remote access via Daikin servers |
| Subscription | None | None |
| Home Assistant | Yes, local via MQTT auto-discovery | Yes, local, via the built-in Daikin integration |
| Install | Plug into data port inside indoor unit | Wired inside indoor unit, same general job |
Prices checked 10 June 2026.
Where the BRP072C42 is the better buy
If you own one of the models it actually fits and you want the genuine part, it is a reasonable choice. It is the official accessory, so there is no warranty argument to have with anyone, installers know it, and it needs no subscription. Home Assistant supports it locally through the standard Daikin integration, using the key printed on the module's sticker. For a set-and-forget install on a US7 or big Cora where price is not the deciding factor, it does the job.
Where Faikin is the better buy
Almost everywhere else. It is less than half the price. It covers models the BRP072C42 does not, including most of the small and mid-size splits Daikin sells in Australia. The firmware is open source and updated regularly, while D-Mobile has barely changed in years. And the control model is local-first: web interface on your network, MQTT for automation, Home Assistant discovery out of the box, no dependence on Daikin's app servers for remote access (pair it with Home Assistant remote access instead). Home Assistant is not essential either: any MQTT-capable platform works, including openHAB, Node-RED, Domoticz, ioBroker, Homey and Hubitat, and an MQTT bridge adds HomeKit, Alexa and Google Home. The new Faikin P1P2 model has native HomeKit and Matter support, no bridge needed, though it is for ducted, cassette and commercial systems rather than wall-mounted splits.
The honest caveats: it is not a genuine Daikin part, so if your unit is under warranty and that matters to you, ask your installer before fitting one. Installation is the same class of job as the OEM adapter: isolate power, remove the front panel, plug in the cable.
FAQ
Is the BRP072C42 still current?
It replaced the BRP072A42 and is still sold, but Daikin has moved newer models to other adapters (such as the BRP084C44) or built-in WiFi. Check your exact model before buying any adapter.
Does the BRP072C42 work with Home Assistant?
Yes, locally, via the built-in Daikin integration. Add it by IP with the key from the sticker on the module.
Why is Faikin so much cheaper than the genuine adapter?
It is built on an ESP32 with open source firmware and sold direct. There is no licensing, app infrastructure or distribution chain priced in.
Can I move a Faikin to a new unit later?
Yes. Keep the module and swap the cable if the new unit needs a different type.
Faikin is an independent product and is not affiliated with, or endorsed by, Daikin Industries Ltd. Daikin and related marks are trademarks of their respective owners. Competitor pricing and features were checked on 10 June 2026 and may change.
