This is a professional grade BNC Female to RCA Male connector. These connectors will convert a BNC connection into an RCA connection. This connector is commonly used to connect Audio/Video devices and is a great way to allow your BNC cables to become compatible with RCA inputs. It’s made from high-quality materials and it comes with our FireFold Signature Lifetime Warranty. The price for these adapters doesn't get any lower than this. Buy 4 or 5 of them to keep on hand!