Support short-reach 40 GbE switching with the HPE X142 40G QSFP+ MPO SR4 transceiver. Designed for multimode fiber environments, it delivers 40 Gbps connectivity through an MPO interface and a QSFP+ form factor that fits high-density network platforms. It is a practical fit for top-of-rack, leaf-spine, and switch-to-switch links where short distance and clean cable management are priorities. SR4 optics are commonly chosen when you want efficient short-range transport without paying for long-reach capability you will not use. The MPO connector supports parallel optics design, which aligns well with structured cabling in modern data centers. For teams standardizing on HPE and Aruba networking gear, this module helps keep procurement aligned with the platform while preserving the optical characteristics expected in enterprise switching environments. Choose this transceiver when you need dependable 40 GbE throughput across short runs and want a module that fits dense rack layouts without adding unnecessary complexity.