Amphenol Quadrax Contacts are designed for high-performance applications requiring high data transfer rates and low power consumption. The unique design incorporates 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 these contacts suitable for demanding environments. They are commonly used in Gigabit Ethernet assemblies and other high-speed data communication systems, often requiring modification of MIL-DTL-38999 connectors to accommodate the keyed contacts. Consult Amphenol for availability of alternative finishes.