This is a 3m 2xCS (male) to 2xLC (male) yellow quadplex riser-rated fiber patch cable. OS2 is a standard single-mode optical fiber commonly used with wavelengths of 1310nm and 1550nm (9/125 microns), and has a maximum attenuation of 1dB/km. The OS2 standard is defined in ISO/IEC 11801. This optical fiber, nonconductive, riser (OFNR) cable is best suited for use in interior fiber-optic applications. A quadplex cable is a four-strand fiber optic patch cable with two duplex connectors on each end, ideal for high-density, long-distance single-mode applications. Our cables are TIA compliant, ensuring performance for all networking needs.