The PM40084B1-FEI by Microchip is an advanced 84-lane, Gen4 PCI Express (PCIe) fanout switch designed for the leading edge of networking and data center applications. This high-performance IC is engineered to facilitate the construction of complex high-speed computing environments, capable of supporting the rapid transfer of data across multiple PCIe devices with minimal latency. The Gen4 technology ensures double the bit rate of Gen3, providing significantly improved bandwidth and efficiency for applications demanding high throughput such as high-performance computing, storage systems, and state-of-the-art data centers. The PM40084B1-FEI stands out with its ability to offer fanout and switching capabilities, making it invaluable for creating flexible, scalable, and efficient system architectures. This component is also designed with power efficiency in mind, featuring low-power operation modes and advanced power management techniques to reduce overall power consumption. Its integration in systems contributes to achieving better signal integrity, reliability, and operational efficiency.