He was selected in the fourth round of the 2003 NFL draft by the Carolina Panthers.
As a senior in 2002, he was named Honorable Mention All-Pac-10 after compiling 69 tackles.
Branch was selected in the fourth round with the 119th pick of the 2003 NFL draft by the Carolina Panthers.
[1][2] In 2004, Branch had 55 tackles and three interceptions for the Panthers, while starting 15 games.
[5] Branch is currently married to the former April Sage of North Charleston, South Carolina and they have four children together, sons Kendrick, Aaron and Salem Calvin (named after Colin's father, Calvin Stanley Branch, and brother Calvin Stanley Branch Jr.), and daughter Sage.