All serial cards for the Amiga are only of small use when you only need it to connect a modem to. Downloadspeed isn`t likely to increase. It just leaves more processortime left to a.e. decode jpegs. So pages with lots of bigger images might be displayed a little bit faster and the Amiga is a little bit snappier over all during pagedecoding but that`s it. When I still used an 56k modem I barely noticed any difference between internal serial port and HypercomZ3. But then again I had an 060 in it, with slower processors there might be a more significant impact.
To sum it up:
Good reasons to get any serial card:
- you need more then one serial port
- you want to do some sernet type networking
Bad/weak reasons to get a serial card:
- you want to connect a modem to it insted of the internal serial port.