Saim RJ45 Modular CAT 5 5E Extender Plug Network Female to Female Straight Coupler Ethernet Lan Cable Joiner Connector Adapter Pack of 20 With The RJ-45 Coupler Connector Can Make a Network Extension Cord Out of Two Cat5E Network Patch Cables. Both Female RJ45 Connectors Accept One RJ-45 Plug, Allows To Plug Ethernet Cable into Both Sides Future-proof Network Ethernet Lan RJ45 CAT5 5E Extender Plug; Allows You to Plug Ethernet Cables into Both Sides. RJ45 Female to Female Straight through Connector,great for extending ethernet connection by connecting two Cat 5 or Cat 5e make one longer cable Cat5 RJ45 couplers extend the connection between two Ethernet patch cables Can be used with or without the Keystone Latch.