This new rugged ATR (air transport rack) chassis is compliant with VITA 48.4 for liquid flow-through cooling. The backplane in the chassis is designed for data rates up to 10 Gbps and can handle 300 watts per slot. The new chassis features configurable front I/O connectors on a removable panel and a filtered power input connector. Individual card coolant flow rates are adjustable with selectable orifices. The backplane features eight 6U slots on a 1.2-inch pitch, including two VITA 62-compliant power supply slots, four 6U slots, and two 6U payload slots populated with all J1-J6 connectors. Clockable guide pins are included at each slot to allow for easier keying (angle rotation), without having to deal with the removal of the backplane from the chassis.