InfiniBand CX4 Cables are high-speed, copper-based interconnects used primarily in data centers and high-performance computing (HPC) environments to link servers, switches, and storage systems. They support Single Data Rate (SDR) and Dual Data Rate (DDR) configurations, providing data transfer speeds of up to 2.5 Gbps (SDR) and 5 Gbps (DDR) per lane across a 4-lane (4x) connection. These cables are known for their low latency and reliable performance over short distances, making them ideal for tightly-coupled computing clusters.