Optical USB is a universal serial bus technology that uses fiber optics to increase data transmission speeds. Although some believe optical technology is part of the USB 3. 0 standard, the two are different. However, optical USB refers to both a USB cable and a. A USB flash drive (also known as a thumb drive) [note 1] is a data storage device that includes flash memory with an integrated USB interface. The data is encoded as microscopic pits and lands arranged in a spiral track on the disc. The drive interprets the reflected laser light to convert these. An optical module is a typically hot-pluggable optical transceiver used in high-bandwidth data communications applications. Most flash drives have between 2 and 64 gigabytes (GB) of memory, but some drives can store as much as 2 terabytes (TB).
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