I came across this (https://www.osnews.com/story/144156/openbsd-on-the-sharp-zaurus-sl-c3100/) article on #osnews about the Sharp Zaurus SL-C3100. I had an immediate flashback of when I had the device and was testing the freshly ported #OpenBSD on it. As the article points out the Zaurus had a CF Slot. As I was working on 3G/UMTS modem drivers at that time, I of course had to get a CF <-> PCMCIA adapter to test those as well.