Arrays, edge-type, and mezzanine rectangular connectors for board-to-board connections are designed to provide a high-density and compact solution for connecting multiple PCBs. These connectors offer a parallel arrangement of contacts, allowing for efficient and space-saving connections between boards. Mezzanine connectors, in particular, enable vertical stacking of boards, contributing to the development of compact and modular electronic systems. These connectors are commonly used in applications where space optimization and signal integrity are critical, such as in mobile devices, data storage systems, and high-performance computing environments.