Colin Kaepernick 1-of-1 Trading Card Sells For $20K, Over $5K To QB's Charity

A SUPER RARE Colin Kaepernick football card just sold for over $20k at auction ... and at least $5 grand is being donated to the quarterback's charity! As we previously reported ... the 2011 Topps Platinum Rookie Patch Autograph Red Refractor card…