To move away from the standard configuration of ports located on the back of a standard acrylic case, ClearPC has included a plastic clear port extender on the side of the "Secret Agent" Briefcase. This custom, all-clear cable assembly includes dual USB, Firewire, and one set of Audio jacks. The dual USB ports user internal header pins that can be conveniently connected directly to a motherboard. The Firewire and Audio cables must be routed out the rear of the case and connected to the appropriate ports on a motherboard. Located next the port extender is a series of ventilation slots that assist with air circulation above the CPU area. The positive aspect of this feature that air circulation is pushed in one direction and allows the heat from the CPU to be exhausted. The negative of this feature is that there is no filter located in this area prevent dust and foreign material from entering inside the case.