The PlusOptic, Cisco BiSFP-U1-40-CIS has a data rate of 1.25G, has a distance of 40KM, on SMF and has an LC connector. All PlusOptic products are manufactured in state of the art, ISO 9001, dirt and dust free manufacturing facilities. We ensure that all PlusOptic products are made with only the highest quality lasers and componentry, under strict manufacturing practices and rigorous testing to ensure that all PlusOptic products are of the highest possible quality.