I purchased 3 of these cables because they were cheap and got good reviews.  I don't know how people are getting these cables to work... but out of the 3 I bought, 0 have functioned properly with my Palm Pre!  The best I can do is get it to charge, though the entire time it is charging the computer is complaining about "Unknown Device" and "Could not install drivers" even though it works beautifully with the original cable.  The only setting that works is "Just Charge"!  Each of the 3 cables fails slightly differently which makes me believe that each has a different flaw!  I've tried this with my Wife's Palm Pixi as well as used different computers and that failed as well.  Look elsewhere when attempting to purchase a cable for your Palm device!