Hirose developed the micro "BF4MC connector" that enables optical transmission of data between boards that are incorporated in devices.It converts an electrical signal that is received from a board by using the semiconductor component built-in the connector, and transfers the data via optical fiber.BF4MC connector is a revolutionary design that enables easy use of electromagnetic noise-free, insulated, long-distance, high-speed transmission.

Optical transmissions achieved by simplified electrical connections:
Optical signal transmission is accomplished with electronic connectors and has eliminated the need for cleaning the mating faces of traditional fiber optic connectors.
High-speed, signal transmissions with no EMI noise:
Optical signal transmissions rated up to 6.25 Gbps are possible.
Since there is no EMI noise to contend with on the signal lines, system design time is reduced.