LC and MPO are both types of fiber optic connectors, but they have different designs and uses.

LC connector: - The LC (Lucent Connector) is a small form-factor connector widely used in telecommunications and data networking. - It has a 1.25 mm ferrule, making it smaller than other connectors like SC and ST. - The LC connector is commonly used in high-density connections and applications that require good performance and reliability.

MPO connector: - The MPO (Multi-fiber Push-On) connector is designed for multiple fibers, typically containing 12, 24, or 48 fibers in a single connector. - It is commonly used in high-speed data transmission applications, such as data centers and high-density cabling environments. - MPO connectors are used for applications that require quick deployment and high-density connections.

In summary, the main difference between LC and MPO connectors is their size and number of fibers they can accommodate. The LC connector is designed for single fiber connections, while the MPO connector is designed for multiple fiber connections.