Singlemode Fiber Optic Cables from Cables For Less. Standard Single Mode 9/125 duplex optical fiber available in configurations with with all the regular fiber connectors such as LC, SC, ST, FC, MTRJ as well as Single Mode UPC and APC cable types. Single Mode Duplex cable theoretically has unlimited bandwidth capacity, due to its design. Single Mode fiber has a small light carrying core that allows one mode of light to propagate, it is an ideal solution for long range networking. It can transmit data up to 40GB with little integrity loss at greater distances these fiber cables can send data at speeds up to 10Gb. Single Mode fiber uses a single strand of optical fiber to send data in both directions (Bi-directional) transmission. If you can't find what you need, feel free to actually call and speak with a real person, we want your business and appreciate the chance to earn it! To get in touch with one of our fiber specialists you can email Sales@cablesforless.com or call (800) 273-9556.