Keep high-speed uplinks stable across longer fiber runs with the HPE Aruba JL310A 100G QSFP28 LR4 transceiver. Designed for single-mode fiber deployments, it delivers 100 GbE connectivity through an LC duplex interface in a compact QSFP28 form factor. That makes it a strong fit for aggregation layers, spine-leaf fabrics, and campus backbones where link reach and port efficiency matter. LR4 optics are built for environments that need more distance than short-reach multimode modules can provide, without moving to a different cabling strategy. The result is cleaner planning for structured cabling, fewer compromises at the rack, and a transceiver choice that aligns with enterprise-grade switching infrastructure. For teams standardizing on HPE Aruba networking, this module supports a straightforward path to 100 GbE optical uplinks while preserving the density advantages of QSFP28. It is the kind of component that earns its place in production networks by reducing uncertainty at the edge of the fabric and keeping critical traffic moving across the fiber plant.