The SC connector (short for Subscriber Connector, square connector or Standard Connector) mainly used in Datacom and telecom; GPON; EPON; GBIC, It features a 2.5mm Zirconia Ceramic ferrule and a push/pull coupling mechanism for a fast and reliable connection. The SC connectors are available for single mode UPC with blue boots, for APC with green boots and for multimode PC with red or black boots suitable for 0.9mm, 2.0mm or 3.0mm cable diameters.