RJ45 Modular Connectors and Modular Plugs serve as the primary link between devices, necessitating the use of a metal that can ensure and maintain stable conductivity. Gold proves to be the ideal choice due to its corrosion resistance and exceptional durability. Unlike other metals such as copper and nickel, which degrade and lose connectivity over time when exposed to external factors like humidity and moisture, gold remains robust.
The thickness of gold plating on these connectors is measured in micro-inches, with 50 micro-inches representing the thickest available option. This level of plating is instrumental in preserving a fast and stable connection, capable of delivering up to four times the throughput. To adhere to FCC and IEC specifications, a minimum amount of gold or nickel is required in RJ45 plugs. However, a recent study revealed that more than 50% of tested plugs fell short of meeting this minimum standard.
Given the prevalence of subpar Ethernet cables in the market, it becomes imperative to seek out products explicitly labeled with 50 micro-inches of gold plating. Furthermore, FCC and IEC specifications mandate connectors composed of at least 99% pure gold and free from surface defects.
Cable manufacturers who advertise their plugs and connectors as having 50-micro-inch gold plating are likely using 99% pure gold in their construction.