Please look at the picture and ask questions I don't know anything about this stuff

The product is a 7-piece Cat6 Ethernet LAN network shielded keystone jack. This jack is designed to provide a secure connection for Ethernet cables, ensuring a reliable and high-speed network connection. With its shielded design, it helps to reduce interference and improve data transmission. Ideal for use in networking setups, this jack is a practical and essential component for any computer or home network.