Keep short-reach 40 GbE links moving with a QSFP+ transceiver designed for multimode fiber deployments. The 40GBASE-SR4 architecture is a strong fit for data center fabrics where predictable reach, compact packaging, and straightforward interoperability matter more than long-haul optics. This module is described as HP/Aruba compatible and functionally identical to JH231A, making it a sensible choice for teams maintaining existing infrastructure or replacing optics in established switch environments. The 850 nm wavelength and 100 m reach align with common rack-to-rack and row-scale connections. For procurement teams, the value is in matching the right optic to the right workload without paying for unnecessary distance or capability. For operations teams, the benefit is simple: a compact 40 GbE transceiver that fits short-reach multimode designs and supports high-density port planning. Choose this optic when you need dependable 40 GbE performance in a form factor that keeps the network clean, dense, and easy to maintain.