fyboptwu SC/UPC Male to SC/APC Female Singlemode Fiber Adapter 20pcThis package contains 20 SC/UPC male to SC/APC female singlemode fiber optic adapters for connecting different fiber connector types. These hybrid adapters convert signals between UPC and APC polish types while maintaining singlemode compatibility. Each adapter features low insertion loss with attenuation of approximately 0.28dB at 1310nm and 0.31dB at 1550nm. The metal ion erbium-doped fiber construction withstands high-intensity optical power poundsProductdimensions2.0 x 0.5 x 3.0 inchesStyleSC/UPC Male to SC/APC FemalePartnumber