[Usage]: Tedgetal Cat6 keystone jack couplers can be used for connecting two Cat6/Cat5e cables, to easily extend the length of cables. [Compatibility]:These RJ45 couplers are compatible with all standard keystone jack patch panels, surface mount boxes and wall plates(faceplates), [High Performance]: Gold plated contacts and easy snap-in retaining clip ensure a reliable connection. [Application Scenario]: Rj45 couplers will provide a full range of solutions for voice, home networking, home office, audio, video, etc. [Package]: 10-pack of Cat6 RJ45 keystone jack coupler per plastic bags.