Deliver short-reach 40/100 GbE connectivity with a QSFP module designed for optical network and data networking deployments. This Cisco module uses LC duplex connectivity and supports multimode fiber, making it well suited to in-rack and interconnect runs where distance is measured in the data center, not across campus. The module is specified for Cisco Nexus 9000 Series switches, which gives infrastructure teams a clear compatibility target when standardizing optics across a switching estate. With 100GBase-SR support and 40GBase-X / 100GBase-X network technology, it addresses environments that need high-speed transport without moving to longer-reach or more complex optical designs. For teams building repeatable, serviceable network layers, this module offers a straightforward path to dense fiber connectivity. It is the kind of component that earns its place in production by matching the physical medium, the switch platform, and the performance target without excess complexity.