RJ45 Ethernet Cable Connector(F-to-F Type) and RJ45 to RJ11 Adapter
Brand: Jekewin

Make a network extension cord out of two 10Base-T Cat 5 network patch cables with an RJ-45 coupler. Both jacks accept one RJ-45 plug, allowing you to plug an Ethernet cable into both sides.

RJ-45 coupler.
RJ45 Ethernet cable connector, F-to-F type
Come with RJ45 to RJ11 Adapter
Made of plastic and copper
Quality ensured , no-hassle refund if you are not 100% satisfied!