I get this question all the time and I know there are several good options out there... but, I'm curious what brand or model you timing guys would recommend to add additional serial ports to a PC?
Most of my customers seem to be on XP and sometimes they need to add more than 1 port (since serial ports are getting more rare, especially on notebooks)

Thanks,

--
Geoff
http://www.SplitSecond.com
http://www.SplitSecondRealTime.com

Currently I use a Prolific Device USB to Serial and have had good results on the 98 and 2000 platforms. We recently purchased an XP machine and the adapter is not supported with drivers for that OS. I will be looking for the word on XP also.

This is the best one I have ever used---it works great

CB2S650.large.jpg (26 KB, 43 downloads)

In mission critical timing, I do not trust USB to Serial converters, especially if using XP. If your into timing, spend the extra money and use a pcmcia card to serial port.

We like to use the Socket Quad i/o card. A bit expensive but great having 4 serial ports. They also come in single and dual cards for those who don't crave all the serial ports. Don't forget DataLog, Display, Timer, and an extra just in case.
JK