We're happily using the 16-port version of the Cyclades Y-series
PCI card under NetBSD 1.5.2.   The card also comes in 8- and 32-port
versions.  I think they may only sell direct; that's how we bought 
ours anyway:
http://www.cyclades.com/products/svrbas/yseries.php

---Alex

> Hi,
> 
> I'm looking for a 8 port serial board which is supported on NetBSD.
> 
> Any recomendations, warnings ?
> 
> cheers & thanks,
> emanuel