@jernej__s@nina_kali_nina I used to see them mostly for TV tuners. I think I ran into a few HDD versions of them too in the wild. There might be a few 'lightning fast' 28k modem laying around... though I think the last one I saw was a 2400 baud fax.
@josh@nina_kali_nina This specific one was from a dead ThinkPad, and I put it in a HP LaserJet 4L, which then allowed it to print a full page at 600 DPI instead of choking halfway through and printing just some blurry shapes.