Amphenol Quadrax contacts are designed for high-performance applications requiring high data transfer rates and low power consumption. The contacts feature four strategically spaced inner contacts forming two 100 or 150 Ohm matched impedance differential pairs, and a rugged outer contact for durability. They are available in size 8 crimp termination style and require modification of MIL-DTL-38999 connectors to accommodate keyed contacts. These contacts are ideal for Gigabit Ethernet and other high-speed data transmission applications.