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. By integrating optical fibers into the cable design, Active Fiber Optic USB Cables achieve unprecedented levels of data transmission speed and distance, significantly. Fiber-optic communication is a form of optical communication for transmitting information from one place to another by sending pulses of infrared or visible light through an optical fiber. Fiber is preferred. USB over fiber extenders (also called adapters, converters, and transceivers) allow for transmitting USB data at a greater distance and speed than is supported by USB cables. They're thin, light, and remarkably tough — Optical Cables by Corning can be bent, squeezed, and tangled. Available in 10m, 15m, 30m, and 50m lengths.