Ethernet Cable Extension Coupler is the simplest and cost-effective way to connect two Ethernet RJ45 cables together for Ethernet connecting at outdoor environment. It is used in LAN network cable connecting to reach long distance Ethernet extension with female to female easy plug and play design. IP68 rated protection and reliable waterproof design provides guarantee for any application at outdoor or industrial tough environment, such as outdoor LED equipment, grating, CCTV(closed-circuit monitor series), factory automation control, wireless bridge, etc It is compatible with various Ethernet cable with different data rate of 10BASE-T, 100BASE-TX (Fast Ethernet), 1000BASE-T/1000BASE-TX (Gigabit Ethernet) and 10GBASE-T (10-Gigabit Ethernet), such as CAT 5, CAT 5e, CAT 6 patch cords. There's no need for you damage or configure the original cable, saving cost and ensure security on installation. Besides, it features extremely thin head design, so that you can plug the pre-pressed crystal head directly, offering great convenience on connection. Moreover, EMI protection ensures no signal degradation after connection. With the combination of PoE long reach switch, long distance Ethernet network and power transmission for PoE IP powered devices can be set up fast and conveniently without huge investment on PoE extension devices.