Looks like the Air 3 is designed to be retrofitted with a 4g/5g connection via a USB C expansion bay built in to the top of it.
Not sure how much use it would be though, since it would already be a challenge to fly beyond the O4 range without running out of battery except for flying behind obstructions such as trees I suppose.
Is this news to anyone?
https://djioemparts.com/products/4g-cellular-dongle-for-dji-air-3-td-lte-usb-modem
They’ve been around for various DJI drones for a couple of years, not available to purchase directly in the UK and I suspect they’d also be firmware / GPS-location locked.
It was briefly mentioned here:
https://greyarro.ws/search?q=cellular%20module
And:
The rc pro rm - 510 also has a cover in the back which behind is for this dongle but as we know not for this country & many others.
Found this outfit that appear to supply the dongle but there are a few comments that bother me ie no returns and needs an annual subscription from DJI after 1st year 
They do however supply some genuine DJI that some may find useful.
Never used them so buyer beware - just for info.
Things like that convince me even more that it’s a geolocked piece of functionality 
The Chinese will sell you anything 
Based in Shenzhen,China, djioemparts.com offers original repair parts for all kinds of DJI products
and its pretty certain it wont work here
So that makes 3 of us that won’t be buying a 4G dongle
Having said that - http://djioemparts.com/ - may be useful for the other DJI parts they sell - shipping time to UK is quoted as 7~10 days.
This device ended up in an email in my inbox
I know that cellular dongles in drones is nothing new but it was never allowed in the UK due to regulations. I gather this has changed but I still can not see what the use case for this sort of device would be as VOLS will still need to be maintained.
So why ? who would be buying this ?
I’m considering it. Although I’m not bothered about flying crazy distances I do quite often fly in densely wooded areas and it could be an advantage
Not me.
£129 for the dongle + £19 for the mounting kit for the Mini 4 Pro. Will take it over 249g which defeats the reasons for buying the Mini in the first place.
So far, flying within VLOS I have never lost signal.
For those who have BVLOS authorisations
The cynic in me can’t help thinking DJI are just dumping stock in case their USA ban becomes a reality 
Will this just be for the later ie mini 4 pro & air 3 O4 transmission or I wonder if they’ll offer one for the rc pro O3 + where the dongle goes in the back of the rc 
Rich, the dongle connects to the drone itself (nothing connects to the controller) and is used when OcuSync doesn’t work (eg. out of range). Your controller would need an internet connection to work with the dongle.
This bit of the small print is interesting:
I wonder how much they charge for the annual service subscription?
that’s the only application I can think off but the drone’s this device is for is hardly the sort of drone that would get that authorisation - generally the BVLOS drones are the parcel flying box type but I guess there might be a use case for it here.
Power line or railway inspections perhaps, but very much an edge case 
Ah ok thanks for that, yes I wonder how much the subscription as well
It was just a pot luck guess as the said controller has the 4G capabilities, just see your post above,
I did read ages ago that the use of 4G dongle not available to work in this country ( with the rc pro ) so I’m wondering how that works if & where allowed & if an internet connection is needed or have I missed something.
Edit Mavic 3 not available in this country ah well 
You could hotspot your RC to your mobile phone to get it on the internet, on the assumption DJI would allow that to work with the dongle on the aircraft
