Yes it is from Radio Shack serial to usb adaptor. So far i have used the software that comes with the system with good success, but it is limited to what it can do. I wish I had known about I-Lap when we got into this, it would've been better, but oh well live and learn.

What I'd like to do is use Lapsfree. With my software I can not do an IFMAR start or a staggered start. What do you suggest?