I own a couple of these devices and they are the real deal but I understand how that can be off putting.

Full disclosure: they use some Chinese shipping service I’ve never heard of that may raise scam alerts further.

The adapters are smaller than comparables I have and work with every device I’ve tried. That being said, I haven’t done a teardown and I’ve only used them about half a year so far.

I also like these chargers. I use adapters to several companies' proprietary charging ports. I like they will do 240W in a SFF and have bonus USB-C ports for my phone and tablet (or whatever).