You can design PCB with detailed electrical components like microprocessors, microcontrollers and other components which are used in the electrical circuits. Proteus Design Suite 2014 Professional 8.1 is a handy application which can be used for designing electrical circuits. Proteus Design Suite 2014 Professional 8.1 SP1 Overview It is full offline installer standalone setup of Proteus Design Suite 2014. Proteus Design Suite 2014 Professional 8.1 SP1 Free Download Latest Version.