Amphenol's Quadrax contacts are designed for high-performance applications requiring high data transfer rates and excellent EMI compatibility. 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. Available in size 8 crimp termination style, these contacts are ideal for use in MIL-DTL-38999 connectors, although modification is required to accommodate the keyed contacts. They are commonly used in Gigabit Ethernet assemblies and other high-speed data communication systems.