It's a Taiwanese company around since the 90s. They may be more Europe focused with a German office. I've never heard a US reviewer mention them but in the UK, they offer cards cheaper than the other brands. Beyond that, I don't know much about them. I've bought a couple of their cards and never had an issue so they get a thumbs up from me for N=2.

I know them from their KalmX line, which is passively cooled.