I use an HDS Live with Reefmaster and it works fine. Cannot comment to the new Pro.

I think the only real problem with the 'Pro' currently (at least that I know of) is that is doesn't have AT5 support. Which is fine if all you are doing is collecting data and making map to show a client, but if you want to actually use your map in your unit, you won't be able to do that. I hope this changes in the future but it's just fingers crossed sort of thing. I'm using a Carbon unit and it's been great. Granted im saving files to card and not connecting to a computer.

HDS Pro units do read AT5 Maps. No problem.

I definitely cannot get a Lowrance HDS Pro to display an AT5 map. My older HDS live 9 would display it. Same card, same map.

I submitted a ticket to Lowrance by the website, which seems to be the only way to get ahold of support. Just hitting 22 business days without a response. The ability to use reefmaster on lowrance was the sole reason I bought the unit.

I'll take any suggestions or ideas. Very frustrating.

I’d like to hear what the answer is. Thinking about purchasing a new HDS Pro myself

Hi, I am using Reefmaster/IMC maps (AT5) on my Lowrance HDS Pro units without any problem.
If you want me to test your AT5 map on my HDS Pro units, I can do so. Just let me know. I would be glad to help you out.

Thanks

Hi Everybody
I have just replace my HDS 12 gen 3 by a PRO
I will trying it this evening ,
Yves

Any update?

Can anyone confirm that the .at5 export from RM works the same on the new Lowrance PRO units as on their older units?
Big investment to find out your maps dont work anymore.

Everything is working. The Pro, like other lowrance devices, works with .at5 format cards.

Thanks for the input