Singlemode Duplex UPC and APC

APC Fiber

UPC APC fiber optic cables available at Cables for Less in a variety of lengths! UPC connectors are blue, the UPC stands for Ultra-Physical Contact. APC connectors are green, the APC stands for Angle Polished Connector. What is the difference between UPC vs APC connectors besides color? APC connectors have been polished to an 8 or 9 degree angle, that prevents back reflections which can impede performance. The UPC connector has a slight curve so that the fiber has a better alignment at contact.  To get in touch with one of our fiber specialists you can email or call (800) 273-9556. Be sure to take a look at our Fiber Optics Explained page and learn about all things Fiber!