Keep 100 GbE links active where port density and fiber reuse matter most. The Axiom QSFP-100G-SR-BD transceiver is built for Cisco environments that need short-reach multimode connectivity without adding unnecessary complexity to the rack. Its bidirectional SR design supports 100 Gbps transport over duplex LC fiber, making it a practical fit for leaf-spine fabrics, aggregation layers, and high-throughput server uplinks. For infrastructure teams, the value is in preserving performance while controlling optics spend. SR-BIDI optics reduce fiber count requirements compared with traditional parallel-fiber approaches, which can simplify cabling in crowded pathways and help maximize existing multimode infrastructure. That makes this module a strong choice when you need to scale 100 GbE access in a predictable, standards-based way. Use it where short-reach links must stay fast, clean, and easy to manage. This transceiver is designed for environments that prioritize compatibility with Cisco hardware and dependable 100 GbE operation across multimode runs.