The bulk sc pigtails feature UPC to UPC connectors that are durable easy to install?and ensure?precise alignment,Singlemode fiber ensures low insertion loss and high return loss for Very good signal transmission,and each pigtail undergoes rigorous quality testing to ensure it meets or exceeds industry standards and the most demanding performance specifications,and the bulk fiber pigtails is suitable for data centers, passive optical networks (PON), local area networks (LAN), headend termination to fiber backbones, fiber rack system terminations and intra building applications