Amphenol Quadrax Contacts are designed for high-performance applications requiring high data transfer rates, low power consumption, and excellent EMI compatibility. The contacts feature a unique design with four strategically spaced inner contacts forming two 100 or 150 Ohm matched impedance differential pairs, and a rugged outer contact for enhanced durability. These contacts are typically used in MIL-DTL-38999 connectors and are available in size 8 crimp termination style. Modification of the connector is required to accommodate the keyed contacts. They are ideal for applications in aerospace, military, and industrial environments where reliable data transmission is critical.