Open frame power supply are no different to passive atx PSU, with their massive vents. There are issues with being plug and play, and I heavily rely on the certified meanwell units to be safe, and provide the correct connectors so users can easily hook it up. The Pure case has been warmly received because it is actually straight forward to build in.In all fairness, and I greatly respect what TheHack is doing, I don't think open frame supplies are a good solution for the average user or broader market. In the hands of the novice I would actually argue that open frame power supplies are dangerous. I also have no interest in selling non-rated/certified supplies to the public due to the liabilities that can incur.
In order for me to do 12V seriously I would need to have something as plug and play as the HDPlex solutions with a significant reduction in AC-DC converter size. If you look at the Bel 180W AC-DC open frame supplies (which aren't GaN) this gives you a bit of an idea of where I think these units are headed. This is ultimately what I am working towards longer term.
I don't intend to chase the novice market at all. As soon as you chase the novice market, a big company will steal your ideas and mass produce it and kill you off.
It is no more dangerous than running the super open S4M, where a bad spill can short 400W worth of DC current, or the full wall of AC current in an ungrounded AC-DC unit (I heavily criticize this more than anything).
DC-DC units don't have the same liability issues as AC-DC units, since the ac-dc unit is the only thing that really require certifications, and they often come with many protection features. At least in the USA. Any off the market ac-dc is already fully certified so that keeps small run certification down.
I have two primary goals:
1. To bring small form factor computing even smaller. This means I have to fully integrate power solution and chassis design. Since the beginning I have supported the idea that 12V is the future of sff.
2. To bring total cost of uSFF. Which means I have to fully integrate the power and the chassis.
Keep in mind that our Chinese market competitors are bringing flex atx units and chassis. If they ever figure out good customer support and a good flex atx unit is released, we'd be in trouble.
At the time being, I think 19V serves a unique purpose in that the external units are powerful and compact compared to 12V. Should a GAN unit ever come out, it will certainly remove that advantage.
For the dynamo 360, have considered 12V pass through instead? It'll bring the total cost of a kit down.