Keep high-speed backbone links open across distances that standard optics cannot cover. This HPE/Aruba JL310A-80K compatible 100GBASE-ZR4 QSFP28 transceiver is designed for long-reach 100 GbE deployments over single-mode fiber, making it a practical fit for campus interconnects, metro aggregation, and other extended optical runs. ZR4 optics are chosen when link distance matters as much as throughput. By pairing 100 Gbps signaling with single-mode fiber and an LC duplex interface, this module supports infrastructure teams that need to preserve performance over longer spans without moving to a different transport architecture. It is a strong option for environments where port density, optical reach, and compatibility with Aruba/HPE platforms all need to align. For procurement teams, the value is straightforward: this module helps avoid overbuying transport gear for links that only need long-reach Ethernet optics. For architects, it offers a clean way to extend 100 GbE between network rooms, aggregation points, and remote facilities while keeping the design simple and predictable. When the network needs distance without sacrificing 100 GbE throughput, this transceiver fits the brief.