The Neutrik NE8FF etherCON Coupler is a feedthrough adapter designed to join two RJ45‑terminated Ethernet cables, providing a secure and durable way to extend cable runs in professional audio, lighting, and network setups. It accepts standard RJ45 plugs as well as Neutrik’s ruggedized NE8MC etherCON connectors, and uses a latch‑lock mechanism to help maintain a stable connection during use. Internally, the coupler supports Category 5e performance with an operating bandwidth of 1–100 MHz, and is built to meet common cabling standards such as TIA/EIA‑568B and ISO/IEC 11801. With a metal shell, gold‑plated contacts, and a rated lifespan of over 1000 mating cycles, it is suited for environments where repeated patching or handling is expected. Typical applications include extending Ethernet lines for digital audio networks, stage lighting control, and other data‑driven production systems where a robust inline coupler is needed.