Garmin
I bought my Garmin 45 ages ago. I can't really remember how long ago, but must be around 10 years at least. I have never had a problem with it. I have also connected it to my Autohelm ST4000 autopilot, but I don't use it that way too often.Over the years I have downloaded PC software that interface with it, and purchased custom PC cables and other accessories for it. I think because Garmin product is well built, easy to use, and so popular, there are just so many things people have done with these units, and you can do the same.I thought about buying a new unit with all the frills, but my old 45 is still working just great, and I don't really want to read the tiny maps on the tiny LCD display. So, I will be keeping the 45 for quite a while.