Amphenol's Quadrax contacts are designed for high-performance applications requiring high data transfer rates, low power consumption, and excellent EMI compatibility. The design incorporates four strategically spaced inner contacts forming two 100 or 150 Ohm matched impedance differential pairs, along with a rugged outer contact for enhanced durability. These contacts are typically used in size 8 crimp termination styles and often require modifications to MIL-DTL-38999 connectors to accommodate the keyed contact design. They are suitable for applications demanding reliable and efficient data transmission.