[Ham-Mac] USB Serial adapters

[Tim McLeod]

I just added an iMac 400 MHz to my shack equipment and will use it to
replace a PB1400.  OS is 10.3.9 and will probably not be upgraded to Tiger
as it does not have a DVD drive.

I plan to purchase a Keyspan USB to serial adapter for my TNC etc but would
like some feedback on the Twin Serial adapter (RS422) vs the High Speed
serial adapter (RS232).  I may also use it for rig control at some later
date.

TIA

Tim, VE3TZS