The AVIDAN TC Rugged Computer system – architected, designed and manufactured by EPS, is designed for heavy duty industrial and military applications where up to 3 independent computers are needed to co-work in a compact 19” and 6U rugged shelf approved for Mil-Std-810. All boards are of standard 3U cPCI form factor while the additional 3U of height is utilized for a powerful and filtered air cooling system with a front to back airflow. The cooling system includes an N+1 redundant fan arrangement. Each one of the 3 computer segments comprises a 3U & 2 slot industry standard cPCI SBC, a Power Supply and 2 slots of cPCI application and/or IO boards. The I/O ports are accessed from the rear while the operational connectors and switches are at the front.