http://www.znyx.com/ has sales and tech details.  Their two port card 
(unusually) appears to be a PCI bridge design too.

> ok where can I get one of these board?  The Zy.. thing
> 
> On Wed, 21 Jan 1998, Jonathan Stone wrote:
> 
> > 
> > Heh. I'd guess there's no point continuing with 10Mbit/sec chips
> > anymore: the price differential is small enough that it's not worth
> > the inventory costs.
> > 
> > >for some strange reason, mine all ended up at the same IRQ. I haven't bothered
> > >to look at it or decide whether I care)..
> > 
> > This is normal. The four-port chips have an on-board "PCI" bus that
> > glues the four chips together behind a PCI-PCI bridge. The PPB itself
> > only consumes one IRQ on the host side.
> > 
> > (If memory serves, the two-port cards just glom two PCI chips onto a
> > single board, which would explain why they use two IRQs.)
> > 
> 
> 
> ..............          ....................................
> Thomas T. Thai          Infomedia Interactive Communications
> tom@iic.net             TEL 612.376.9090 * FAX 612.376.9087
> 
> 


--