15m Multimode Duplex Fiber Optic Patch Cable (50/125) OM3 Aqua - Laser Opt - SC to ST Core Diameter: 50/125 micron Optical multimode 3 (OM3) compliant for 10-Gigabit Ethernet support Insertion loss: typically 0.30 dB Return loss: &gt;20dB Vertical Cavity Surface Emitting Laser (VCSEL) optimized