The branch singel mode SC to SC fiber pigtail is ideal for network connection in high-performance single-mode networks, including Data Centers, Broadband CATV, PON (Passive Optical Network), WDM or DWDM,multiplexing, FTTH and voice services in ATM and SONET metropolitan and access networks, The ribbon fan-out fiber pigtails come with a partial outer jacket to help protect the tight buffer fibers from being damaged.