Santa brought me a Keiser M3i bike and I am loving it so far. Now I want to ride using Zwift and I was told that I needed the Keiser M Series Converter to be able to use Zwift. However, as it is very pricey, I wondered if there was a cheaper alternative. I found the North Pole Engineering Cable Device but I am not sure if this would work. Also, it’s very hard to get in Germany where I live. Is there any other device which could do the job? What connection do I need?