Servers, communication base stations, and precise medical equipment require a long-term, stable, and dependable work guarantee. On the other hand, these types of equipment are typically large in size and are unlikely to be loaded in bulk. The most common method of transporting these various types of equipment is to disassemble them in pieces and reassemble them at the destination. The assembly and start-up of the pieces of equipment take a long time due to the complex wiring. As a result, a large number of connector matching operations increase workloads, resulting in high demand for connectors with a large number of pins and a high integration degree.