Amphenol's Quadrax contacts are designed for high-performance applications requiring high data transfer rates and low power consumption. These 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. They are typically used in MIL-DTL-38999 Series III connectors and are available in size 8 crimp termination styles. Modification of the connector is required to accommodate the keyed contacts. These contacts are ideal for Gigabit Ethernet and other high-speed data transmission applications.