The HD Flex fiber optic cassette has an OM4 fiber type with optimized low loss, Method B polarity. It has 12-ports, 24-fibers and 2 MPOs to 12-port duplex, blue-colored LC connectors. The HD Flex cassette allows system designers to customize the configuration, reach, and breakout construction to fit a specific application's requirements. The HD flex fiber cassette minimizes waste, optimizes cable management, speeds up deployment, and improves the flexibility and manageability of a data center with lower installation costs.