OM3 is a 50/125 μm multimode fiber (MMF) designed for short-distance high-speed data transmission, supporting up to 100Gbps over 100m and 40Gbps over 300m with excellent effective modal bandwidth and low attenuation. It is widely deployed in data centers, enterprise LANs, and campus networks, serving as a cost-effective solution for short-haul, high-density connectivity while maintaining backward compatibility with legacy multimode infrastructure.