The duplex SC connector is a type of fiber optic connector used in telecommunications. It is a two-piece connector with a snap-in ferrule that holds two fibers. It is a popular choice for fiber optic networks due to its small size, low cost, and ease of installation. The duplex SC connector is designed to provide a secure connection between two fiber optic cables. It is also designed to be resistant to dust, moisture, and other environmental factors. The duplex SC connector is available in both single-mode and multi-mode versions, and is compatible with most fiber optic cables. It is a reliable and cost-effective solution for connecting fiber optic cables in a variety of applications.