Sansa Clip cable info needed

I need to buy a new cable for my Clip and understand that it uses a standard USB 2.0 to mini-B cable. When I did some searching for that particular cable, I found 4-pin, 5-pin and 8-pin cables. Which one will work properly?

It does get confusing, doesn’t it?  5-pin.  They often will be listed as for use with digital cameras or MP3 players. 

Thank you!