Optical usb thin card

An optical universal-serial-bus (USB) thin card, comprising:

• a substrate, having a packaging layer formed thereon;
• a seat, disposed at a position on the substrate while enabling at least one opening and an accommodation space to be formed by the enclosure of the seat and the substrate, further comprising:
• a plurality of first contact elements, each being disposed on the seat;
• and
• a plurality of second contact elements, each being disposed on the seat at a position other than those of the first contact elements;
• a bidirectional optical transmission module, having a plurality of optical fiber, disposed inside the accommodation space while allowing the same to transmit optical data through the at least one opening formed between the seat and the substrate as its data transmission/receiving path;
• a micro control unit, for processing and controlling signals, data and commands of the optical USB thin card;
• and
• a function unit, for providing functionalities including at least one of storing, communication, or inputting-and-outputting.