Female In-Line Style Coupler.
Designed to join 2x RJ45 network cables together.
Make a network extension cord out of two 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.
Stand alone 'RJ45' Inline Coupler. Provides a Female-to-Female feed-through connection.