Powell's 15 home runs with the Ports trailed only Myron Leslie's total of 17. He drove in 47 runs, and drew 43 walks – also second to only Leslie.
With the Ports, Powell hit .290 against right-handed pitching, but just .200 against lefties. Behind the plate, he led the California League in fielding percentage among catchers with a .994 clip. He committed four errors and 11 passed balls.
In addition, Powell threw out 52 percent of base-runners (50 of 97) in 82 games behind the plate.
Powell was the A's first-round pick in the 2004 draft out of South Carolina in the SEC. He was selected the previous year by the Cubs in the 25th round.