This Cat7 keystone coupler can be used to connect two Cat 7 ethernet cables. Rj45 keystone female to female can support up to 100 meters. All 8P8C of keystone jack ethernet are gold plated to support better lan cable connectors up to 10Gb speed and 600MHZ ethernet network. Additional Details ------------------------------ Product description: This Cat7 keystone coupler can be used to connect two Cat 7 ethernet cables. Rj45 keystone female to female can support up to 100 meters. All 8P8C of keystone jack ethernet are gold plated to support better lan cable connectors up to 10Gb speed and 600MHZ ethernet network.