Amphenol Quadrax contacts are designed for high-performance applications requiring high data transfer rates and low power consumption. These contacts feature four strategically spaced inner contacts forming two 100 or 150 Ohm matched impedance differential pairs, ensuring efficient signal transmission. The rugged outer contact provides durability, making them suitable for demanding environments. They are typically used in MIL-DTL-38999 connectors and require modification to accommodate keyed contacts. Available in various configurations and cable types, Quadrax contacts offer a reliable solution for Gigabit Ethernet and other high-speed data applications.