Support high-density 40 GbE connectivity with a QSFP+ SR4 module designed for short-reach multimode deployments. The 40GBASE-SR4 optical profile uses 850 nm wavelength and an MPO connector, making it a practical fit for data center fabrics that rely on compact cabling and consistent link behavior. This module is well suited for teams extending 40 GbE across leaf-spine networks, top-of-rack uplinks, and adjacent rack interconnects. Its short-reach design helps align optical performance with the distances typically found inside enterprise data centers, avoiding the cost and complexity of longer-reach optics when they are not needed. For procurement teams standardizing on compatible optics, this module offers a straightforward way to source a 40G SR4 transceiver for multimode infrastructure. It is a strong choice when the goal is to preserve bandwidth, keep cabling simple, and maintain a clean upgrade path for 40 GbE switching environments.