May be here: http://www.asus.com/Motherboards/AMD_AM3/M4A88TMUSB3/#specifications
It says that the board has only one “AMD SB710 controller”.
May be here: http://www.asus.com/Motherboards/AMD_AM3/M4A88TMUSB3/#specifications
It says that the board has only one “AMD SB710 controller”.