I highly recommend this product for those who are looking for a good, reliable, and easy to setup 56k modem for Linux. I've been using this particular model for ~3 years now. I have three computers in the house, each of which uses one of these (Ubuntu, Slackware, and Windows), without any problems whatsoever. Unlike the original poster, I didn't need to use any drivers at all, worked out of the box with both 2.4, and 2.6 kernels. I've used both the USB and serial models, and both work well.